content: Remove Lock/Unlock CompositingSurface API from RWH.

content/browser/renderer_host/render_widget_host_view_aura.cc

 // 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.
 
 #include "content/browser/renderer_host/render_widget_host_view_aura.h"
 
 #include <set>
 #include <utility>
 
 #include "base/auto_reset.h"
@@ skipping 2243 matching lines @@
                             ->max_touch_move_in_pixels_for_click();
   tsc_config.enable_longpress_drag_selection = false;
   selection_controller_.reset(new ui::TouchSelectionController(
       selection_controller_client_.get(), tsc_config));
 }
 
 void RenderWidgetHostViewAura::OnDidNavigateMainFrameToNewPage() {
   ui::GestureRecognizer::Get()->CancelActiveTouches(window_);
 }
 
-void RenderWidgetHostViewAura::LockCompositingSurface() {
-  NOTIMPLEMENTED();
-}
-
-void RenderWidgetHostViewAura::UnlockCompositingSurface() {
-  NOTIMPLEMENTED();
-}
-
 cc::FrameSinkId RenderWidgetHostViewAura::GetFrameSinkId() {
   return delegated_frame_host_ ? delegated_frame_host_->GetFrameSinkId()
                                : cc::FrameSinkId();
 }
 
 cc::SurfaceId RenderWidgetHostViewAura::SurfaceIdForTesting() const {
   return delegated_frame_host_ ? delegated_frame_host_->SurfaceIdForTesting()
                                : cc::SurfaceId();
 }
 
@@ skipping 92 matching lines @@
 
 void RenderWidgetHostViewAura::SetPopupChild(
     RenderWidgetHostViewAura* popup_child_host_view) {
   popup_child_host_view_ = popup_child_host_view;
   event_handler_->SetPopupChild(
       popup_child_host_view,
       popup_child_host_view ? popup_child_host_view->event_handler() : nullptr);
 }
 
 }  // namespace content