Scroll offset pinning and content size notifications were only used for the Mac overlay navigation …

content/browser/renderer_host/render_widget_host_view_mac.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_WIDGET_HOST_VIEW_MAC_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_MAC_H_
 
 #import <Cocoa/Cocoa.h>
 #include <list>
 #include <map>
@@ skipping 310 matching lines @@
   virtual void AcceleratedSurfacePostSubBuffer(
       const GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params& params,
       int gpu_host_id) OVERRIDE;
   virtual void AcceleratedSurfaceSuspend() OVERRIDE;
   virtual void AcceleratedSurfaceRelease() OVERRIDE;
   virtual bool HasAcceleratedSurface(const gfx::Size& desired_size) OVERRIDE;
   virtual void GetScreenInfo(blink::WebScreenInfo* results) OVERRIDE;
   virtual gfx::Rect GetBoundsInRootWindow() OVERRIDE;
   virtual gfx::GLSurfaceHandle GetCompositingSurface() OVERRIDE;
 
-  virtual void SetScrollOffsetPinning(
-      bool is_pinned_to_left, bool is_pinned_to_right) OVERRIDE;
   virtual bool LockMouse() OVERRIDE;
   virtual void UnlockMouse() OVERRIDE;
   virtual void WheelEventAck(const blink::WebMouseWheelEvent& event,
                              InputEventAckState ack_result) OVERRIDE;
 
   // IPC::Sender implementation.
   virtual bool Send(IPC::Message* message) OVERRIDE;
 
   // SoftwareFrameManagerClient implementation:
   virtual void SoftwareFrameWasFreed(
@@ skipping 215 matching lines @@
 
   // Called when a GPU SwapBuffers is received.
   void GotAcceleratedFrame();
 
   // Called when a software DIB is received.
   void GotSoftwareFrame();
 
   // IPC message handlers.
   void OnPluginFocusChanged(bool focused, int plugin_id);
   void OnStartPluginIme();
-  void OnDidChangeScrollbarsForMainFrame(bool has_horizontal_scrollbar,
-                                         bool has_vertical_scrollbar);
 
   // Convert |rect| from the views coordinate (upper-left origin) into
   // the OpenGL coordinate (lower-left origin) and scale for HiDPI displays.
   gfx::Rect GetScaledOpenGLPixelRect(const gfx::Rect& rect);
 
   // Send updated vsync parameters to the renderer.
   void SendVSyncParametersToRenderer();
 
   // Release the browser compositor lock, and request another frame from the
   // browser compositor. Because this can be requested from inside compositor
@@ skipping 55 matching lines @@
   scoped_ptr<RenderWidgetHostViewFrameSubscriber> frame_subscriber_;
 
   base::WeakPtrFactory<RenderWidgetHostViewMac>
       software_frame_weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewMac);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_MAC_H_