Revert of Suppress accessibility events when user is navigating away.

content/browser/web_contents/web_contents_impl.cc

Index: content/browser/web_contents/web_contents_impl.cc
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index f4837942137d3f8fee9676a5a70e8b8a03695c87..094361dcfe9aff59aef949981b719341e54ee51b 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -2541,17 +2541,6 @@
       observers_,
       DidStartProvisionalLoadForFrame(
           render_frame_host, validated_url, is_error_page, is_iframe_srcdoc));
-
-  // Notify accessibility if this is a reload.
-  NavigationEntry* entry = controller_.GetVisibleEntry();
-  if (entry && ui::PageTransitionCoreTypeIs(
-          entry->GetTransitionType(), ui::PAGE_TRANSITION_RELOAD)) {
-    FrameTreeNode* ftn = render_frame_host->frame_tree_node();
-    BrowserAccessibilityManager* manager =
-        ftn->current_frame_host()->browser_accessibility_manager();
-    if (manager)
-      manager->UserIsReloading();
-  }
 }
 
 void WebContentsImpl::DidStartNavigationTransition(
@@ -2573,12 +2562,6 @@
                                            validated_url,
                                            params.error_code,
                                            params.error_description));
-
-  FrameTreeNode* ftn = render_frame_host->frame_tree_node();
-  BrowserAccessibilityManager* manager =
-      ftn->current_frame_host()->browser_accessibility_manager();
-  if (manager)
-    manager->NavigationFailed();
 }
 
 void WebContentsImpl::DidFailLoadWithError(
@@ -2654,11 +2637,6 @@
                     observers_,
                     DidCommitProvisionalLoadForFrame(
                         render_frame_host, url, transition_type));
-
-  BrowserAccessibilityManager* manager =
-      render_frame_host->browser_accessibility_manager();
-  if (manager)
-    manager->NavigationSucceeded();
 }
 
 void WebContentsImpl::DidNavigateMainFramePreCommit(
@@ -3830,17 +3808,6 @@
                                       bool to_different_document) {
   SetIsLoading(render_frame_host->GetRenderViewHost(), true,
                to_different_document, NULL);
-
-  // Notify accessibility that the user is navigating away from the
-  // current document.
-  //
-  // TODO(dmazzoni): do this using a WebContentsObserver.
-  FrameTreeNode* ftn = static_cast<RenderFrameHostImpl*>(render_frame_host)->
-      frame_tree_node();
-  BrowserAccessibilityManager* manager =
-      ftn->current_frame_host()->browser_accessibility_manager();
-  if (manager)
-    manager->UserIsNavigatingAway();
 }
 
 void WebContentsImpl::DidStopLoading(RenderFrameHost* render_frame_host) {