Support additional webkit accessibility notifications and states.

1. Update WebAccessibility::ConvertState to function similarly to WebCore's AccessibleBase::get_accState. 
2. Use WebKit's load complete notification to send the renderer's tree to the browser. 
We enable accessibility on the renderer now instead of requesting a tree. 
3. Use WebKit's focused ui element notification to send renderer focus events to the browser. 

BUG=13291
BUG=38106
TEST=interactive_ui_tests:AccessibilityWinBrowserTest.TestNotificationActiveDescendantChanged 
TEST=interactive_ui_tests:AccessibilityWinBrowserTest.TestNotificationFocusChanged 

Review URL: http://codereview.chromium.org/3380017

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@60569 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 1 insertions, 15 deletions

diff --git a/chrome/browser/renderer_host/render_widget_host.h b/chrome/browser/renderer_host/render_widget_host.h
index 8fcedd1..390cc31 100644
--- a/chrome/browser/renderer_host/render_widget_host.h
+++ b/chrome/browser/renderer_host/render_widget_host.h
@@ -146,6 +146,7 @@ class RenderWidgetHost : public IPC::Channel::Listener,
 
   RenderProcessHost* process() const { return process_; }
   int routing_id() const { return routing_id_; }
+  static bool renderer_accessible() { return renderer_accessible_; }
 
   // Set the PaintObserver on this object. Takes ownership.
   void set_paint_observer(PaintObserver* paint_observer) {
@@ -399,13 +400,6 @@ class RenderWidgetHost : public IPC::Channel::Listener,
   }
 
  protected:
-  // Aid for determining when an accessibility tree request can be made. Set by
-  // TabContents to true on document load and to false on page navigation.
-  void SetDocumentLoaded(bool document_loaded);
-
-  // Requests a snapshot of an accessible DOM tree from the renderer.
-  void RequestAccessibilityTree();
-
   // Internal implementation of the public Forward*Event() methods.
   void ForwardInputEvent(const WebKit::WebInputEvent& input_event,
                          int event_size, bool is_keyboard_shortcut);
@@ -688,14 +682,6 @@ class RenderWidgetHost : public IPC::Channel::Listener,
   // changed.
   bool suppress_next_char_events_;
 
-  // Keep track of if we have a loaded document so that we can request an
-  // accessibility tree on demand when renderer accessibility is enabled.
-  bool document_loaded_;
-
-  // Keep track of if we've already requested the accessibility tree so
-  // we don't do it more than once.
-  bool requested_accessibility_tree_;
-
   // Optional video YUV layer for used for out-of-process compositing.
   scoped_ptr<VideoLayer> video_layer_;