diff --git a/android_webview/java/src/org/chromium/android_webview/crash/AwMinidumpUploaderDelegate.java b/android_webview/java/src/org/chromium/android_webview/crash/AwMinidumpUploaderDelegate.java
index 5e3972cd6202c7..8ee217b28ec16b 100644
--- a/android_webview/java/src/org/chromium/android_webview/crash/AwMinidumpUploaderDelegate.java
+++ b/android_webview/java/src/org/chromium/android_webview/crash/AwMinidumpUploaderDelegate.java
@@ -13,7 +13,6 @@
 import org.chromium.base.ContextUtils;
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.VisibleForTesting;
-import org.chromium.components.minidump_uploader.CrashFileManager;
 import org.chromium.components.minidump_uploader.MinidumpUploaderDelegate;
 import org.chromium.components.minidump_uploader.util.CrashReportingPermissionManager;
 import org.chromium.components.minidump_uploader.util.NetworkPermissionUtil;
@@ -88,12 +87,4 @@ public void recordUploadSuccess(File minidump) {}
 
     @Override
     public void recordUploadFailure(File minidump) {}
-
-    @Override
-    public void migrateMinidumpFilenamesIfNeeded(CrashFileManager crashFileManager) {
-        File[] minidumpFilesUsingOldNamingScheme = crashFileManager.getMinidumpsSansLogcat();
-        for (File minidump : minidumpFilesUsingOldNamingScheme) {
-            CrashFileManager.trySetReadyForUpload(minidump);
-        }
-    }
 }
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/crash/ChromeMinidumpUploaderDelegate.java b/chrome/android/java/src/org/chromium/chrome/browser/crash/ChromeMinidumpUploaderDelegate.java
index 103ea085ed38aa..8e0ec0a22b98ca 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/crash/ChromeMinidumpUploaderDelegate.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/crash/ChromeMinidumpUploaderDelegate.java
@@ -10,7 +10,6 @@
 import android.os.PersistableBundle;
 
 import org.chromium.chrome.browser.preferences.privacy.PrivacyPreferencesManager;
-import org.chromium.components.minidump_uploader.CrashFileManager;
 import org.chromium.components.minidump_uploader.MinidumpUploaderDelegate;
 import org.chromium.components.minidump_uploader.util.CrashReportingPermissionManager;
 import org.chromium.components.minidump_uploader.util.NetworkPermissionUtil;
@@ -99,10 +98,4 @@ public void recordUploadSuccess(File minidump) {
     public void recordUploadFailure(File minidump) {
         MinidumpUploadService.incrementCrashFailureUploadCount(minidump.getAbsolutePath());
     }
-
-    @Override
-    public void migrateMinidumpFilenamesIfNeeded(CrashFileManager crashFileManager) {
-        // Minidump filenames are migrated as part of attaching logcats within the
-        // ProcessInitializationHandler, and hence there is no need to migrate them here.
-    }
 }
diff --git a/components/minidump_uploader/android/java/src/org/chromium/components/minidump_uploader/CrashFileManager.java b/components/minidump_uploader/android/java/src/org/chromium/components/minidump_uploader/CrashFileManager.java
index 6451173389494f..5208f559d051e4 100644
--- a/components/minidump_uploader/android/java/src/org/chromium/components/minidump_uploader/CrashFileManager.java
+++ b/components/minidump_uploader/android/java/src/org/chromium/components/minidump_uploader/CrashFileManager.java
@@ -68,12 +68,8 @@ public class CrashFileManager {
     private static final Pattern MINIDUMP_READY_FOR_UPLOAD_PATTERN =
             Pattern.compile("\\.(dmp|forced)([0-9]*)(\\.try([0-9]+))\\z");
 
-    // TODO(isherman): The ".tryN" suffix is currently optional, so that old uploaded minidump files
-    // will continue to be detected as such. However, new uploads are guaranteed to include this
-    // suffix. Tighten this regex (by removing the final '?') in roughly the M61 timeframe:
-    // http://crbug.com/719120
     private static final Pattern UPLOADED_MINIDUMP_PATTERN =
-            Pattern.compile("\\.up([0-9]*)(\\.try([0-9]+))?\\z");
+            Pattern.compile("\\.up([0-9]*)(\\.try([0-9]+))\\z");
 
     private static final String NOT_YET_UPLOADED_MINIDUMP_SUFFIX = ".dmp";
 
diff --git a/components/minidump_uploader/android/java/src/org/chromium/components/minidump_uploader/MinidumpUploaderDelegate.java b/components/minidump_uploader/android/java/src/org/chromium/components/minidump_uploader/MinidumpUploaderDelegate.java
index 8dacd4e4cd90b0..bd3e72764b0c1c 100644
--- a/components/minidump_uploader/android/java/src/org/chromium/components/minidump_uploader/MinidumpUploaderDelegate.java
+++ b/components/minidump_uploader/android/java/src/org/chromium/components/minidump_uploader/MinidumpUploaderDelegate.java
@@ -46,17 +46,4 @@ public interface MinidumpUploaderDelegate {
      * @param minidump The minidump filename, prior to the upload attempt.
      */
     void recordUploadFailure(File minidump);
-
-    /**
-     * Prior to M60, the ".tryN" suffix was optional for files ready to be uploaded; it is now
-     * required. Clients may implement this method to migrate previously saved minidumps to the new
-     * naming scheme, if necessary.
-     * Note: Because renaming files is a file operation, this method should never be called on the
-     * UI thread; only on a background thread.
-     * @param crashfileManager The file manager responsible for the set of minidumps that might need
-     *     migration.
-     * TODO(isherman): This is temporary migration logic, and can be removed in M61:
-     * http://crbug.com/719120.
-     */
-    void migrateMinidumpFilenamesIfNeeded(CrashFileManager crashFileManager);
 }
diff --git a/components/minidump_uploader/android/java/src/org/chromium/components/minidump_uploader/MinidumpUploaderImpl.java b/components/minidump_uploader/android/java/src/org/chromium/components/minidump_uploader/MinidumpUploaderImpl.java
index fcda72e5fec629..e90e98e27cdf29 100644
--- a/components/minidump_uploader/android/java/src/org/chromium/components/minidump_uploader/MinidumpUploaderImpl.java
+++ b/components/minidump_uploader/android/java/src/org/chromium/components/minidump_uploader/MinidumpUploaderImpl.java
@@ -143,13 +143,6 @@ public void run() {
                 }
             }
 
-            // Prior to M60, the ".tryN" suffix was optional for files ready to be uploaded; it is
-            // now required. Give clients a chance to migrate previously saved off minidumps to the
-            // new naming scheme, if necessary. Do this after attempting to upload existing crash
-            // dumps, to ensure that if the task is rescheduled, it has a chance to make progress on
-            // the most important task first.
-            mDelegate.migrateMinidumpFilenamesIfNeeded(fileManager);
-
             // Clean out old/uploaded minidumps. Note that this clean-up method is more strict than
             // our copying mechanism in the sense that it keeps fewer minidumps.
             fileManager.cleanOutAllNonFreshMinidumpFiles();
diff --git a/components/minidump_uploader/android/javatests/src/org/chromium/components/minidump_uploader/TestMinidumpUploaderDelegate.java b/components/minidump_uploader/android/javatests/src/org/chromium/components/minidump_uploader/TestMinidumpUploaderDelegate.java
index 4d28dd49628a6e..35b02bc76718f6 100644
--- a/components/minidump_uploader/android/javatests/src/org/chromium/components/minidump_uploader/TestMinidumpUploaderDelegate.java
+++ b/components/minidump_uploader/android/javatests/src/org/chromium/components/minidump_uploader/TestMinidumpUploaderDelegate.java
@@ -41,7 +41,4 @@ public void recordUploadSuccess(File minidump) {}
 
     @Override
     public void recordUploadFailure(File minidump) {}
-
-    @Override
-    public void migrateMinidumpFilenamesIfNeeded(CrashFileManager crashFileManager) {}
 }