Focus following for the non-editable controls on web page in magnifier mode.

content/browser/renderer_host/render_view_host_impl.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_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_IMPL_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 350 matching lines @@
   void OnRouteCloseEvent();
   void OnRouteMessageEvent(const ViewMsg_PostMessage_Params& params);
   void OnStartDragging(const DropData& drop_data,
                        blink::WebDragOperationsMask operations_allowed,
                        const SkBitmap& bitmap,
                        const gfx::Vector2d& bitmap_offset_in_dip,
                        const DragEventSourceInfo& event_info);
   void OnUpdateDragCursor(blink::WebDragOperation drag_operation);
   void OnTargetDropACK();
   void OnTakeFocus(bool reverse);
-  void OnFocusedNodeChanged(bool is_editable_node);
+  void OnFocusedNodeChanged(bool is_editable_node,
+                            const gfx::Rect& node_bounds_in_viewport);
   void OnClosePageACK();
   void OnDidZoomURL(double zoom_level, const GURL& url);
   void OnRunFileChooser(const FileChooserParams& params);
   void OnFocusedNodeTouched(bool editable);
 
  private:
   // TODO(nasko): Temporarily friend RenderFrameHostImpl, so we don't duplicate
   // utility functions and state needed in both classes, while we move frame
   // specific code away from this class.
   friend class RenderFrameHostImpl;
@@ skipping 94 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(RenderViewHostImpl);
 };
 
 #if defined(COMPILER_MSVC)
 #pragma warning(pop)
 #endif
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_IMPL_H_