Revert of Revert of Migrate accessibility from RenderView to RenderFrame.

content/browser/renderer_host/render_widget_host_impl.h

Index: content/browser/renderer_host/render_widget_host_impl.h
diff --git a/content/browser/renderer_host/render_widget_host_impl.h b/content/browser/renderer_host/render_widget_host_impl.h
index 6f884b66f6761d088d1a6cfdbf31b2521ef66dd2..a26f6099e0a60f05add77f4f033d67a52dfb08e7 100644
--- a/content/browser/renderer_host/render_widget_host_impl.h
+++ b/content/browser/renderer_host/render_widget_host_impl.h
@@ -24,7 +24,6 @@
 #include "base/timer/timer.h"
 #include "build/build_config.h"
 #include "cc/resources/shared_bitmap.h"
-#include "content/browser/accessibility/browser_accessibility_manager.h"
 #include "content/browser/renderer_host/event_with_latency_info.h"
 #include "content/browser/renderer_host/input/input_ack_handler.h"
 #include "content/browser/renderer_host/input/input_router_client.h"
@@ -78,6 +77,7 @@
 #endif
 
 namespace content {
+class BrowserAccessibilityManager;
 class InputRouter;
 class MockRenderWidgetHost;
 class RenderWidgetHostDelegate;
@@ -95,8 +95,7 @@
       public InputRouterClient,
       public InputAckHandler,
       public TouchEmulatorClient,
-      public IPC::Listener,
-      public BrowserAccessibilityDelegate {
+      public IPC::Listener {
  public:
   // routing_id can be MSG_ROUTING_NONE, in which case the next available
   // routing id is taken from the RenderProcessHost.
@@ -141,10 +140,6 @@
   virtual void LockBackingStore() OVERRIDE;
   virtual void UnlockBackingStore() OVERRIDE;
 #endif
-  virtual void EnableFullAccessibilityMode() OVERRIDE;
-  virtual bool IsFullAccessibilityModeForTesting() OVERRIDE;
-  virtual void EnableTreeOnlyAccessibilityMode() OVERRIDE;
-  virtual bool IsTreeOnlyAccessibilityModeForTesting() OVERRIDE;
   virtual void ForwardMouseEvent(
       const blink::WebMouseEvent& mouse_event) OVERRIDE;
   virtual void ForwardWheelEvent(
@@ -174,23 +169,6 @@
 
   virtual SkColorType PreferredReadbackFormat() OVERRIDE;
 
-  // BrowserAccessibilityDelegate
-  virtual void AccessibilitySetFocus(int acc_obj_id) OVERRIDE;
-  virtual void AccessibilityDoDefaultAction(int acc_obj_id) OVERRIDE;
-  virtual void AccessibilityShowMenu(int acc_obj_id) OVERRIDE;
-  virtual void AccessibilityScrollToMakeVisible(
-      int acc_obj_id, gfx::Rect subfocus) OVERRIDE;
-  virtual void AccessibilityScrollToPoint(
-      int acc_obj_id, gfx::Point point) OVERRIDE;
-  virtual void AccessibilitySetTextSelection(
-      int acc_obj_id, int start_offset, int end_offset) OVERRIDE;
-  virtual bool AccessibilityViewHasFocus() const OVERRIDE;
-  virtual gfx::Rect AccessibilityGetViewBounds() const OVERRIDE;
-  virtual gfx::Point AccessibilityOriginInScreen(const gfx::Rect& bounds)
-      const OVERRIDE;
-  virtual void AccessibilityHitTest(const gfx::Point& point) OVERRIDE;
-  virtual void AccessibilityFatalError() OVERRIDE;
-
   // Forces redraw in the renderer and when the update reaches the browser
   // grabs snapshot from the compositor. Returns PNG-encoded snapshot.
   void GetSnapshotFromBrowser(
@@ -395,30 +373,6 @@
   void SetEditCommandsForNextKeyEvent(
       const std::vector<EditCommand>& commands);
 
-  // Gets the accessibility mode.
-  AccessibilityMode accessibility_mode() const {
-    return accessibility_mode_;
-  }
-
-  // Adds the given accessibility mode to the current accessibility mode bitmap.
-  void AddAccessibilityMode(AccessibilityMode mode);
-
-  // Removes the given accessibility mode from the current accessibility mode
-  // bitmap, managing the bits that are shared with other modes such that a
-  // bit will only be turned off when all modes that depend on it have been
-  // removed.
-  void RemoveAccessibilityMode(AccessibilityMode mode);
-
-  // Resets the accessibility mode to the default setting in
-  // BrowserStateAccessibilityImpl.
-  void ResetAccessibilityMode();
-
-#if defined(OS_WIN)
-  void SetParentNativeViewAccessible(
-      gfx::NativeViewAccessible accessible_parent);
-  gfx::NativeViewAccessible GetParentNativeViewAccessible() const;
-#endif
-
   // Executes the edit command on the RenderView.
   void ExecuteEditCommand(const std::string& command,
                           const std::string& value);
@@ -519,6 +473,17 @@
   void AddLatencyInfoComponentIds(ui::LatencyInfo* latency_info);
 
   InputRouter* input_router() { return input_router_.get(); }
+
+  // Get the BrowserAccessibilityManager for the root of the frame tree,
+  BrowserAccessibilityManager* GetRootBrowserAccessibilityManager();
+
+  // Get the BrowserAccessibilityManager for the root of the frame tree,
+  // or create it if it doesn't already exist.
+  BrowserAccessibilityManager* GetOrCreateRootBrowserAccessibilityManager();
+
+#if defined(OS_WIN)
+  gfx::NativeViewAccessible GetParentNativeViewAccessible();
+#endif
 
  protected:
   virtual RenderWidgetHostImpl* AsRenderWidgetHostImpl() OVERRIDE;
@@ -709,9 +674,6 @@
       int snapshot_id,
       scoped_refptr<base::RefCountedBytes> png_data);
 
-  // Send a message to the renderer process to change the accessibility mode.
-  void SetAccessibilityMode(AccessibilityMode AccessibilityMode);
-
   // Our delegate, which wants to know mainly about keyboard events.
   // It will remain non-NULL until DetachDelegate() is called.
   RenderWidgetHostDelegate* delegate_;
@@ -782,8 +744,6 @@
   bool waiting_for_screen_rects_ack_;
   gfx::Rect last_view_screen_rect_;
   gfx::Rect last_window_screen_rect_;
-
-  AccessibilityMode accessibility_mode_;
 
   // Keyboard event listeners.
   std::vector<KeyPressEventCallback> key_press_event_callbacks_;