Support additional webkit accessibility notifications and states.

chrome/browser/renderer_host/render_widget_host.h

 // Copyright (c) 2009 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.
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_H_
 #pragma once
 
 #include <deque>
 #include <string>
@@ skipping 128 matching lines @@
 
   // Gets/Sets the View of this RenderWidgetHost. Can be NULL, e.g. if the
   // RenderWidget is being destroyed or the render process crashed. You should
   // never cache this pointer since it can become NULL if the renderer crashes,
   // instead you should always ask for it using the accessor.
   void set_view(RenderWidgetHostView* view) { view_ = view; }
   RenderWidgetHostView* view() const { return view_; }
 
   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) {
     paint_observer_.reset(paint_observer);
   }
 
   // Returns the property bag for this widget, where callers can add extra data
   // they may wish to associate with it. Returns a pointer rather than a
   // reference since the PropertyAccessors expect this.
   const PropertyBag* property_bag() const { return &property_bag_; }
@@ skipping 233 matching lines @@
   virtual void SetActive(bool active);
 
   void set_ignore_input_events(bool ignore_input_events) {
     ignore_input_events_ = ignore_input_events;
   }
   bool ignore_input_events() const {
     return ignore_input_events_;
   }
 
  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);
 
   // Called when we receive a notification indicating that the renderer
   // process has gone. This will reset our state so that our state will be
   // consistent if a new renderer is created.
   void RendererExited();
 
   // Retrieves an id the renderer can use to refer to its view.
@@ skipping 262 matching lines @@
   // shall not send the following sequence of Char events, which was generated
   // by this RawKeyDown event, to the renderer. Otherwise the renderer may
   // handle the Char events and cause unexpected behavior.
   // For example, pressing alt-2 may let the browser switch to the second tab,
   // but the Char event generated by alt-2 may also activate a HTML element
   // if its accesskey happens to be "2", then the user may get confused when
   // switching back to the original tab, because the content may already be
   // 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_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHost);
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_H_