diff --git a/third_party/WebKit/LayoutTests/StaleTestExpectations b/third_party/WebKit/LayoutTests/StaleTestExpectations
index be5ddcf3e9d3b2..be332e421b122e 100644
--- a/third_party/WebKit/LayoutTests/StaleTestExpectations
+++ b/third_party/WebKit/LayoutTests/StaleTestExpectations
@@ -76,7 +76,6 @@ webkit.org/b/104489 [ Win ] http/tests/w3c/webperf/submission/Intel/user-timing/
 webkit.org/b/104489 [ Win ] http/tests/w3c/webperf/submission/Google/resource-timing/html/test_resource_attribute_order.html [ WontFix ]
 webkit.org/b/104489 [ Win ] http/tests/w3c/webperf/submission/Google/resource-timing/html/test_resource_script_types.html [ WontFix ]
 
-webkit.org/b/112980 [ Win Mac ] fast/frames/seamless/seamless-form-post-override.html [ WontFix ]
 webkit.org/b/112610 [ Win ] fast/text/word-space-with-kerning-3.html [ WontFix ]
 
 webkit.org/b/78830 [ Mac ] svg/custom/mask-invalidation.svg [ WontFix ]
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get-expected.txt b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get-expected.txt
index 3a44ad18a53168..70a442b74c2940 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get-expected.txt
@@ -1,5 +1,5 @@
 PASS successfullyParsed is true
 
 TEST COMPLETE
-PASS frames[0].document.body.textContent is "DONE\n"
+PASS frames[0].document.body.textContent.trim() is "DONE"
 
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get-named-expected.txt b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get-named-expected.txt
index 3a44ad18a53168..70a442b74c2940 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get-named-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get-named-expected.txt
@@ -1,5 +1,5 @@
 PASS successfullyParsed is true
 
 TEST COMPLETE
-PASS frames[0].document.body.textContent is "DONE\n"
+PASS frames[0].document.body.textContent.trim() is "DONE"
 
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get-named.html b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get-named.html
index 9d75c1e07fb4e8..8a03357a04a7f8 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get-named.html
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get-named.html
@@ -5,7 +5,7 @@
     testRunner.waitUntilDone();
 
 window.addEventListener('message', function(evt) {
-    shouldBeEqualToString("frames[0].document.body.textContent", "DONE\n");
+    shouldBeEqualToString("frames[0].document.body.textContent.trim()", "DONE");
 
     if (window.testRunner)
         testRunner.notifyDone();
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get-override-expected.txt b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get-override-expected.txt
index 472171711f1734..91cb1548f40a31 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get-override-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get-override-expected.txt
@@ -1,5 +1,5 @@
 PASS successfullyParsed is true
 
 TEST COMPLETE
-PASS frames[0].frames[0].document.body.textContent is "DONE\n"
+PASS frames[0].frames[0].document.body.textContent.trim() is "DONE"
 
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get-override.html b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get-override.html
index 547e5bec3c58c0..c728509fa81e31 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get-override.html
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get-override.html
@@ -5,7 +5,7 @@
     testRunner.waitUntilDone();
 
 window.addEventListener('message', function(evt) {
-    shouldBeEqualToString("frames[0].frames[0].document.body.textContent", "DONE\n");
+    shouldBeEqualToString("frames[0].frames[0].document.body.textContent.trim()", "DONE");
 
     if (window.testRunner)
         testRunner.notifyDone();
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get.html b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get.html
index 8ab744675ca97b..9639eb877d4d9f 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get.html
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-get.html
@@ -6,7 +6,7 @@
     testRunner.waitUntilDone();
 
 window.addEventListener('message', function(evt) {
-    shouldBeEqualToString("frames[0].document.body.textContent", "DONE\n");
+    shouldBeEqualToString("frames[0].document.body.textContent.trim()", "DONE");
 
     if (window.testRunner)
         testRunner.notifyDone();
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post-expected.txt b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post-expected.txt
index 3a44ad18a53168..70a442b74c2940 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post-expected.txt
@@ -1,5 +1,5 @@
 PASS successfullyParsed is true
 
 TEST COMPLETE
-PASS frames[0].document.body.textContent is "DONE\n"
+PASS frames[0].document.body.textContent.trim() is "DONE"
 
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post-named-expected.txt b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post-named-expected.txt
index 3a44ad18a53168..70a442b74c2940 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post-named-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post-named-expected.txt
@@ -1,5 +1,5 @@
 PASS successfullyParsed is true
 
 TEST COMPLETE
-PASS frames[0].document.body.textContent is "DONE\n"
+PASS frames[0].document.body.textContent.trim() is "DONE"
 
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post-named.html b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post-named.html
index 39242bfff14ca5..fb9d0445e69674 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post-named.html
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post-named.html
@@ -6,7 +6,7 @@
     testRunner.waitUntilDone();
 
 window.addEventListener('message', function(evt) {
-    shouldBeEqualToString("frames[0].document.body.textContent", "DONE\n");
+    shouldBeEqualToString("frames[0].document.body.textContent.trim()", "DONE");
 
     if (window.testRunner)
         testRunner.notifyDone();
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post-override-expected.txt b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post-override-expected.txt
index 472171711f1734..91cb1548f40a31 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post-override-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post-override-expected.txt
@@ -1,5 +1,5 @@
 PASS successfullyParsed is true
 
 TEST COMPLETE
-PASS frames[0].frames[0].document.body.textContent is "DONE\n"
+PASS frames[0].frames[0].document.body.textContent.trim() is "DONE"
 
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post-override.html b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post-override.html
index c1b36dad0abb65..852b33c2d1dc80 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post-override.html
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post-override.html
@@ -5,7 +5,7 @@
     testRunner.waitUntilDone();
 
 window.addEventListener('message', function(evt) {
-    shouldBeEqualToString("frames[0].frames[0].document.body.textContent", "DONE\n");
+    shouldBeEqualToString("frames[0].frames[0].document.body.textContent.trim()", "DONE");
 
     if (window.testRunner)
         testRunner.notifyDone();
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post.html b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post.html
index b57c3308e50863..dd035bdae64f2c 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post.html
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-form-post.html
@@ -5,7 +5,7 @@
     testRunner.waitUntilDone();
 
 window.addEventListener('message', function(evt) {
-    shouldBeEqualToString("frames[0].document.body.textContent", "DONE\n");
+    shouldBeEqualToString("frames[0].document.body.textContent.trim()", "DONE");
 
     if (window.testRunner)
         testRunner.notifyDone();
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink-expected.txt b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink-expected.txt
index 3a44ad18a53168..70a442b74c2940 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink-expected.txt
@@ -1,5 +1,5 @@
 PASS successfullyParsed is true
 
 TEST COMPLETE
-PASS frames[0].document.body.textContent is "DONE\n"
+PASS frames[0].document.body.textContent.trim() is "DONE"
 
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink-named-expected.txt b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink-named-expected.txt
index 3a44ad18a53168..70a442b74c2940 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink-named-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink-named-expected.txt
@@ -1,5 +1,5 @@
 PASS successfullyParsed is true
 
 TEST COMPLETE
-PASS frames[0].document.body.textContent is "DONE\n"
+PASS frames[0].document.body.textContent.trim() is "DONE"
 
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink-named.html b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink-named.html
index 32955d1d0b5dce..ae71bffbb901c7 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink-named.html
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink-named.html
@@ -5,7 +5,7 @@
     testRunner.waitUntilDone();
 
 window.addEventListener('message', function(evt) {
-    shouldBeEqualToString("frames[0].document.body.textContent", "DONE\n");
+    shouldBeEqualToString("frames[0].document.body.textContent.trim()", "DONE");
 
     if (window.testRunner)
         testRunner.notifyDone();
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink-override-expected.txt b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink-override-expected.txt
index 472171711f1734..91cb1548f40a31 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink-override-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink-override-expected.txt
@@ -1,5 +1,5 @@
 PASS successfullyParsed is true
 
 TEST COMPLETE
-PASS frames[0].frames[0].document.body.textContent is "DONE\n"
+PASS frames[0].frames[0].document.body.textContent.trim() is "DONE"
 
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink-override.html b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink-override.html
index d92d35bfeaa5cf..591d228e745187 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink-override.html
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink-override.html
@@ -5,7 +5,7 @@
     testRunner.waitUntilDone();
 
 window.addEventListener('message', function(evt) {
-    shouldBeEqualToString("frames[0].frames[0].document.body.textContent", "DONE\n");
+    shouldBeEqualToString("frames[0].frames[0].document.body.textContent.trim()", "DONE");
 
     if (window.testRunner)
         testRunner.notifyDone();
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink.html b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink.html
index 1301888881fc5c..9f583d6be2fe4f 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink.html
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-hyperlink.html
@@ -5,7 +5,7 @@
     testRunner.waitUntilDone();
 
 window.addEventListener('message', function(evt) {
-    shouldBeEqualToString("frames[0].document.body.textContent", "DONE\n");
+    shouldBeEqualToString("frames[0].document.body.textContent.trim()", "DONE");
 
     if (window.testRunner)
         testRunner.notifyDone();
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location-expected.txt b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location-expected.txt
index 3a44ad18a53168..70a442b74c2940 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location-expected.txt
@@ -1,5 +1,5 @@
 PASS successfullyParsed is true
 
 TEST COMPLETE
-PASS frames[0].document.body.textContent is "DONE\n"
+PASS frames[0].document.body.textContent.trim() is "DONE"
 
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location-href-expected.txt b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location-href-expected.txt
index 3a44ad18a53168..70a442b74c2940 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location-href-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location-href-expected.txt
@@ -1,5 +1,5 @@
 PASS successfullyParsed is true
 
 TEST COMPLETE
-PASS frames[0].document.body.textContent is "DONE\n"
+PASS frames[0].document.body.textContent.trim() is "DONE"
 
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location-href.html b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location-href.html
index 12dad5dde428f0..c789f019828a0d 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location-href.html
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location-href.html
@@ -6,7 +6,7 @@
     testRunner.waitUntilDone();
 
 window.addEventListener('message', function(evt) {
-    shouldBeEqualToString("frames[0].document.body.textContent", "DONE\n");
+    shouldBeEqualToString("frames[0].document.body.textContent.trim()", "DONE");
 
     if (window.testRunner)
         testRunner.notifyDone();
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location-replace-expected.txt b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location-replace-expected.txt
index 472171711f1734..91cb1548f40a31 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location-replace-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location-replace-expected.txt
@@ -1,5 +1,5 @@
 PASS successfullyParsed is true
 
 TEST COMPLETE
-PASS frames[0].frames[0].document.body.textContent is "DONE\n"
+PASS frames[0].frames[0].document.body.textContent.trim() is "DONE"
 
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location-replace.html b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location-replace.html
index 1f39d800bdea02..e19d29a05047ca 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location-replace.html
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location-replace.html
@@ -6,7 +6,7 @@
     testRunner.waitUntilDone();
 
 window.addEventListener('message', function(evt) {
-    shouldBeEqualToString("frames[0].frames[0].document.body.textContent", "DONE\n");
+    shouldBeEqualToString("frames[0].frames[0].document.body.textContent.trim()", "DONE");
 
     if (window.testRunner)
         testRunner.notifyDone();
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location.html b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location.html
index 8242fd7a654609..2cc8e8fa5c4703 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location.html
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-location.html
@@ -5,7 +5,7 @@
     testRunner.waitUntilDone();
 
 window.addEventListener('message', function(evt) {
-    shouldBeEqualToString("frames[0].document.body.textContent", "DONE\n");
+    shouldBeEqualToString("frames[0].document.body.textContent.trim()", "DONE");
 
     if (window.testRunner)
         testRunner.notifyDone();
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-open-expected.txt b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-open-expected.txt
index 3a44ad18a53168..70a442b74c2940 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-open-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-open-expected.txt
@@ -1,5 +1,5 @@
 PASS successfullyParsed is true
 
 TEST COMPLETE
-PASS frames[0].document.body.textContent is "DONE\n"
+PASS frames[0].document.body.textContent.trim() is "DONE"
 
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-open-override-expected.txt b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-open-override-expected.txt
index 472171711f1734..91cb1548f40a31 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-open-override-expected.txt
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-open-override-expected.txt
@@ -1,5 +1,5 @@
 PASS successfullyParsed is true
 
 TEST COMPLETE
-PASS frames[0].frames[0].document.body.textContent is "DONE\n"
+PASS frames[0].frames[0].document.body.textContent.trim() is "DONE"
 
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-open-override.html b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-open-override.html
index 48eacb0d5f8b30..d35a33f424f8d5 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-open-override.html
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-open-override.html
@@ -5,7 +5,7 @@
     testRunner.waitUntilDone();
 
 window.addEventListener('message', function(evt) {
-    shouldBeEqualToString("frames[0].frames[0].document.body.textContent", "DONE\n");
+    shouldBeEqualToString("frames[0].frames[0].document.body.textContent.trim()", "DONE");
 
     if (window.testRunner)
         testRunner.notifyDone();
diff --git a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-open.html b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-open.html
index 9d1be8c9ba48c5..87050ddd229f59 100644
--- a/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-open.html
+++ b/third_party/WebKit/LayoutTests/fast/frames/seamless/seamless-window-open.html
@@ -5,7 +5,7 @@
     testRunner.waitUntilDone();
 
 window.addEventListener('message', function(evt) {
-    shouldBeEqualToString("frames[0].document.body.textContent", "DONE\n");
+    shouldBeEqualToString("frames[0].document.body.textContent.trim()", "DONE");
 
     if (window.testRunner)
         testRunner.notifyDone();