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

content/renderer/render_frame_impl.cc

 // Copyright 2013 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.
 
 #include "content/renderer/render_frame_impl.h"
 
 #include <map>
 #include <string>
 
 #include "base/auto_reset.h"
@@ skipping 2666 matching lines @@
   InternalDocumentStateData* data =
       InternalDocumentStateData::FromDataSource(frame->dataSource());
   data->set_did_first_visually_non_empty_layout(true);
 
 #if defined(OS_ANDROID)
   GetRenderWidget()->DidChangeBodyBackgroundColor(
       render_view_->webwidget_->backgroundColor());
 #endif
 }
 
-void RenderFrameImpl::didChangeContentsSize(blink::WebLocalFrame* frame,
-                                            const blink::WebSize& size) {
-  DCHECK(!frame_ || frame_ == frame);
-#if defined(OS_MACOSX)
-  if (frame->parent())
-    return;
-
-  WebView* frameView = frame->view();
-  if (!frameView)
-    return;
-
-  GetRenderWidget()->DidChangeScrollbarsForMainFrame(
-      frame->hasHorizontalScrollbar(),
-      frame->hasVerticalScrollbar());
-#endif  // defined(OS_MACOSX)
-}
-
 void RenderFrameImpl::didChangeScrollOffset(blink::WebLocalFrame* frame) {
   DCHECK(!frame_ || frame_ == frame);
   // TODO(nasko): Move implementation here. Needed methods:
   // * StartNavStateSyncTimerIfNecessary
   render_view_->didChangeScrollOffset(frame);
 }
 
 void RenderFrameImpl::willInsertBody(blink::WebLocalFrame* frame) {
   DCHECK(!frame_ || frame_ == frame);
   if (!frame->parent()) {
@@ skipping 858 matching lines @@
 
 RendererCdmManager* RenderFrameImpl::GetCdmManager() {
   if (!cdm_manager_)
     cdm_manager_ = new RendererCdmManager(this);
   return cdm_manager_;
 }
 
 #endif  // defined(OS_ANDROID)
 
 }  // namespace content