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

content/public/browser/render_widget_host.h

 // Copyright (c) 2012 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 CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_H_
 #define CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_H_
 
 #include "base/callback.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/keyboard_listener.h"
@@ skipping 185 matching lines @@
                                                GdkWindow* target) = 0;
 #elif defined(OS_MACOSX)
   virtual gfx::Size GetBackingStoreSize() = 0;
   virtual bool CopyFromBackingStoreToCGContext(const CGRect& dest_rect,
                                                CGContextRef target) = 0;
 #endif
 
   // Send a command to the renderer to turn on full accessibility.
   virtual void EnableFullAccessibilityMode() = 0;
 
+  virtual bool GetAccessibilityEnabled() const = 0;
+  virtual void SetAccessibilityEnabled(bool enabled) = 0;
+
   // Forwards the given message to the renderer. These are called by
   // the view when it has received a message.
   virtual void ForwardMouseEvent(
       const WebKit::WebMouseEvent& mouse_event) = 0;
   virtual void ForwardWheelEvent(
       const WebKit::WebMouseWheelEvent& wheel_event) = 0;
   virtual void ForwardKeyboardEvent(
       const NativeWebKeyboardEvent& key_event) = 0;
 
   virtual const gfx::Vector2d& GetLastScrollOffset() const = 0;
@@ skipping 75 matching lines @@
   // within content/.  This method is necessary because
   // RenderWidgetHost is the root of a diamond inheritance pattern, so
   // subclasses inherit it virtually, which removes our ability to
   // static_cast to the subclass.
   virtual RenderWidgetHostImpl* AsRenderWidgetHostImpl() = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_H_