Switch AccessibilityMode to be a bitmap

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 94a42ff3af2523563314c8937173dbe11ef88e3e..ac36e02cd21cca241438eb9fed23180129314f67 100644
--- a/content/browser/renderer_host/render_widget_host_impl.h
+++ b/content/browser/renderer_host/render_widget_host_impl.h
@@ -390,12 +390,17 @@ class CONTENT_EXPORT RenderWidgetHostImpl : virtual public RenderWidgetHost,
       const std::vector<EditCommand>& commands);
 
   // Gets the accessibility mode.
-  AccessibilityMode accessibility_mode() const {
+  unsigned int accessibility_mode() const {
     return accessibility_mode_;
   }
 
   // Send a message to the renderer process to change the accessibility mode.
-  void SetAccessibilityMode(AccessibilityMode mode);
+  void SetAccessibilityMode(unsigned int mode);
+
+  // Set the accessibility mode to have the given value for the
+  // AccessibilityModeRender bit, and send an IPC to update the accessibility
+  // mode if necessary.
+  void SetRendererAccessibilityMode(bool on);
 
   // Relay a request from assistive technology to perform the default action
   // on a given node.
@@ -819,7 +824,7 @@ class CONTENT_EXPORT RenderWidgetHostImpl : virtual public RenderWidgetHost,
   gfx::Rect last_view_screen_rect_;
   gfx::Rect last_window_screen_rect_;
 
-  AccessibilityMode accessibility_mode_;
+  unsigned int accessibility_mode_;
 
   // Keyboard event listeners.
   std::vector<KeyPressEventCallback> key_press_event_callbacks_;