Disable flaky tests

The tests in question are flaky on Mac as well:
- https://analysis.chromium.org/p/chromium/flake-portal/flakes/occurrences?key=ag9zfmZpbmRpdC1mb3ItbWVyZwsSBUZsYWtlIlxjaHJvbWl1bUBjb250ZW50X2Jyb3dzZXJ0ZXN0c0BNb3VzZUxhdGVuY3lCcm93c2VyVGVzdC5Db2FsZXNjZWRNb3VzZU1vdmVzQ29ycmVjdGx5VGVybWluYXRlZAw
- https://analysis.chromium.org/p/chromium/flake-portal/flakes/occurrences?key=ag9zfmZpbmRpdC1mb3ItbWVyYgsSBUZsYWtlIldjaHJvbWl1bUBjb250ZW50X2Jyb3dzZXJ0ZXN0c0BNb3VzZUxhdGVuY3lCcm93c2VyVGVzdC5Nb3VzZURvd25BbmRVcFJlY29yZGVkV2l0aG91dFN3YXAM

Also, these are currently blocking submission of
https://crrev.com/c/2159706 which make the failure reproducible due to
timing changes.

Change-Id: If7f2818f56696f0d458e0329699ec1d088d937f0
Bug: 801629, 800303, 815363
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2179483
Reviewed-by: David Bokan <bokan@chromium.org>
Reviewed-by: Eric Seckler <eseckler@chromium.org>
Commit-Queue: Andrew Shulaev <ddrone@google.com>
Cr-Commit-Position: refs/heads/master@{#765076}

content/browser/renderer_host/input/mouse_latency_browsertest.cc

@@ -305,17 +305,9 @@ class MouseLatencyBrowserTest : public ContentBrowserTest {
 // MouseDown events in the case where no swap is generated.
 // Disabled on Android because we don't support synthetic mouse input on
 // Android (crbug.com/723618).
-// Disabled on Windows due to flakyness (https://crbug.com/800303).
-// Disabled on Linux due to flakyness (https://crbug.com/815363).
-#if defined(OS_ANDROID) || defined(OS_WIN) || defined(OS_LINUX)
-#define MAYBE_MouseDownAndUpRecordedWithoutSwap \
-  DISABLED_MouseDownAndUpRecordedWithoutSwap
-#else
-#define MAYBE_MouseDownAndUpRecordedWithoutSwap \
-  MouseDownAndUpRecordedWithoutSwap
-#endif
+// Disabled on due to flakiness (https://crbug.com/800303, https://crbug.com/815363).
 IN_PROC_BROWSER_TEST_F(MouseLatencyBrowserTest,
-                       MAYBE_MouseDownAndUpRecordedWithoutSwap) {
+                       DISABLED_MouseDownAndUpRecordedWithoutSwap) {
   LoadURL();
 
   auto filter = std::make_unique<InputMsgWatcher>(
@@ -358,17 +350,9 @@ IN_PROC_BROWSER_TEST_F(MouseLatencyBrowserTest,
 // events in the case where events are coalesced. (crbug.com/771165).
 // Disabled on Android because we don't support synthetic mouse input on Android
 // (crbug.com/723618).
-// http://crbug.com/801629 : Flaky on Linux and Windows, and Mac with
-// --enable-features=VizDisplayCompositor
-#if defined(OS_ANDROID) || defined(OS_WIN) || defined(OS_LINUX)
-#define MAYBE_CoalescedMouseMovesCorrectlyTerminated \
-  DISABLED_CoalescedMouseMovesCorrectlyTerminated
-#else
-#define MAYBE_CoalescedMouseMovesCorrectlyTerminated \
-  CoalescedMouseMovesCorrectlyTerminated
-#endif
+// http://crbug.com/801629 : Flaky on multiple platforms.
 IN_PROC_BROWSER_TEST_F(MouseLatencyBrowserTest,
-                       MAYBE_CoalescedMouseMovesCorrectlyTerminated) {
+                       DISABLED_CoalescedMouseMovesCorrectlyTerminated) {
   LoadURL();
 
   StartTracing();