Revert of Fix loading accessibility tree for child frame that's already loaded.

content/browser/accessibility/dump_accessibility_tree_browsertest.cc

Index: content/browser/accessibility/dump_accessibility_tree_browsertest.cc
diff --git a/content/browser/accessibility/dump_accessibility_tree_browsertest.cc b/content/browser/accessibility/dump_accessibility_tree_browsertest.cc
index 0aad741fe52ce6d41faaae9ccc75dc2e8228df5d..0e4e6a81fc44e0d0491c565abbaeec8d9052c841 100644
--- a/content/browser/accessibility/dump_accessibility_tree_browsertest.cc
+++ b/content/browser/accessibility/dump_accessibility_tree_browsertest.cc
@@ -848,12 +848,6 @@
   RunHtmlTest(FILE_PATH_LITERAL("frameset.html"));
 }
 
-IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest,
-                       AccessibilityFramesetPostEnable) {
-  enable_accessibility_after_navigating_ = true;
-  RunHtmlTest(FILE_PATH_LITERAL("frameset.html"));
-}
-
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityHead) {
   RunHtmlTest(FILE_PATH_LITERAL("head.html"));
 }
@@ -884,12 +878,6 @@
 }
 
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityIframe) {
-  RunHtmlTest(FILE_PATH_LITERAL("iframe.html"));
-}
-
-IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest,
-                       AccessibilityIframePostEnable) {
-  enable_accessibility_after_navigating_ = true;
   RunHtmlTest(FILE_PATH_LITERAL("iframe.html"));
 }