Move some accessibility methods, enums and interfaces into the content/public API.

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 c088309b4d4fe916e858b61a716b4e176a852328..348d8df98b33b8a8da561ef4ef8a9e51d706f8ce 100644
--- a/content/browser/renderer_host/render_widget_host_impl.h
+++ b/content/browser/renderer_host/render_widget_host_impl.h
@@ -24,6 +24,7 @@
 #include "content/common/view_message_enums.h"
 #include "content/port/common/input_event_ack_state.h"
 #include "content/public/browser/render_widget_host.h"
+#include "content/public/common/accessibility_mode.h"
 #include "content/public/common/page_zoom.h"
 #include "ipc/ipc_listener.h"
 #include "ui/base/ime/text_input_type.h"
@@ -118,7 +119,11 @@ class CONTENT_EXPORT RenderWidgetHostImpl : virtual public RenderWidgetHost,
   virtual bool CopyFromBackingStoreToCGContext(const CGRect& dest_rect,
                                                CGContextRef target) OVERRIDE;
 #endif
-  virtual void EnableFullAccessibilityMode() OVERRIDE;
+  virtual AccessibilityMode GetAccessibilityMode() const OVERRIDE;
+
+  // Send a message to the renderer process to change the accessibility mode.
+  virtual void SetAccessibilityMode(AccessibilityMode mode) OVERRIDE;
+
   virtual void ForwardMouseEvent(
       const WebKit::WebMouseEvent& mouse_event) OVERRIDE;
   virtual void ForwardWheelEvent(
@@ -327,9 +332,6 @@ class CONTENT_EXPORT RenderWidgetHostImpl : virtual public RenderWidgetHost,
   void SetEditCommandsForNextKeyEvent(
       const std::vector<EditCommand>& commands);
 
-  // Send a message to the renderer process to change the accessibility mode.
-  void SetAccessibilityMode(AccessibilityMode mode);
-
   // Relay a request from assistive technology to perform the default action
   // on a given node.
   void AccessibilityDoDefaultAction(int object_id);
@@ -727,6 +729,8 @@ class CONTENT_EXPORT RenderWidgetHostImpl : virtual public RenderWidgetHost,
   // would be queued) results in very slow scrolling.
   WheelEventQueue coalesced_mouse_wheel_events_;
 
+  enum AccessibilityMode accessibility_mode_;
+
   // (Similar to |mouse_move_pending_|.) True while waiting for SelectRange_ACK.
   bool select_range_pending_;