Fix flakiness in DumpAccessibilityTree tests with iframes

content/browser/accessibility/dump_accessibility_tree_browsertest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/path_service.h"
@@ skipping 868 matching lines @@
 
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityIframe) {
   RunHtmlTest(FILE_PATH_LITERAL("iframe.html"));
 }
 
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest,
                        AccessibilityIframeCrossProcess) {
   RunHtmlTest(FILE_PATH_LITERAL("iframe-cross-process.html"));
 }
 
-// Flaky on all platforms: https://crbug.com/622387
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest,
-                       DISABLED_AccessibilityIframeCoordinates) {
+                       AccessibilityIframeCoordinates) {
   RunHtmlTest(FILE_PATH_LITERAL("iframe-coordinates.html"));
 }
 
-// Flaky on all platforms: https://crbug.com/622387
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest,
-                       DISABLED_AccessibilityIframeCoordinatesCrossProcess) {
+                       AccessibilityIframeCoordinatesCrossProcess) {
   RunHtmlTest(FILE_PATH_LITERAL("iframe-coordinates-cross-process.html"));
 }
 
 // Flaky on Win7. http://crbug.com/610744
 #ifdef OS_WIN
 #define MAYBE_AccessibilityIframePresentational DISABLED_AccessibilityIframePresentational
 #else
 #define MAYBE_AccessibilityIframePresentational AccessibilityIframePresentational
 #endif
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest,
                        MAYBE_AccessibilityIframePresentational) {
   RunHtmlTest(FILE_PATH_LITERAL("iframe-presentational.html"));
 }
 
-// Flaky on all platforms: https://crbug.com/622387
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest,
-                       DISABLED_AccessibilityIframeTransform) {
+                       AccessibilityIframeTransform) {
   RunHtmlTest(FILE_PATH_LITERAL("iframe-transform.html"));
 }
 
-// Flaky on all platforms: https://crbug.com/622387
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest,
-                       DISABLED_AccessibilityIframeTransformCrossProcess) {
+                       AccessibilityIframeTransformCrossProcess) {
   RunHtmlTest(FILE_PATH_LITERAL("iframe-transform-cross-process.html"));
 }
 
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest,
                        AccessibilityIframeTransformNested) {
   RunHtmlTest(FILE_PATH_LITERAL("iframe-transform-nested.html"));
 }
 
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest,
                        AccessibilityIframeTransformNestedCrossProcess) {
@@ skipping 435 matching lines @@
 // crbug.com/281952
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, DISABLED_AccessibilityVideo) {
   RunHtmlTest(FILE_PATH_LITERAL("video.html"));
 }
 
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityWbr) {
   RunHtmlTest(FILE_PATH_LITERAL("wbr.html"));
 }
 
 }  // namespace content