Deleted code associated with --enable-gpu-rendering and...

chrome/browser/renderer_host/render_widget_host_view_mac.mm

 // Copyright (c) 2010 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 <QuartzCore/QuartzCore.h>
 
 #include "chrome/browser/renderer_host/render_widget_host_view_mac.h"
 
 #include "app/app_switches.h"
 #include "app/surface/io_surface_support_mac.h"
@@ skipping 791 matching lines @@
 //
 void RenderWidgetHostViewMac::SelectionChanged(const std::string& text) {
   selected_text_ = text;
 }
 
 BackingStore* RenderWidgetHostViewMac::AllocBackingStore(
     const gfx::Size& size) {
   return new BackingStoreMac(render_widget_host_, size);
 }
 
-VideoLayer* RenderWidgetHostViewMac::AllocVideoLayer(
-    const gfx::Size& size) {
-  NOTIMPLEMENTED();
-  return NULL;
-}
-
 // Sets whether or not to accept first responder status.
 void RenderWidgetHostViewMac::SetTakesFocusOnlyOnMouseDown(bool flag) {
   [cocoa_view_ setTakesFocusOnlyOnMouseDown:flag];
 }
 
 void RenderWidgetHostViewMac::KillSelf() {
   if (shutdown_factory_.empty()) {
     [cocoa_view_ setHidden:YES];
     MessageLoop::current()->PostTask(FROM_HERE,
         shutdown_factory_.NewRunnableMethod(
@@ skipping 1734 matching lines @@
   if (!string) return NO;
 
   // If the user is currently using an IME, confirm the IME input,
   // and then insert the text from the service, the same as TextEdit and Safari.
   [self confirmComposition];
   [self insertText:string];
   return YES;
 }
 
 @end