Enforce constant size and device scale factor for surfaces

content/browser/frame_host/render_widget_host_view_child_frame.cc

 // Copyright 2014 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/frame_host/render_widget_host_view_child_frame.h"
 
 #include <algorithm>
 #include <utility>
 #include <vector>
 
@@ skipping 620 matching lines @@
 void RenderWidgetHostViewChildFrame::ReclaimResources(
     const cc::ReturnedResourceArray& resources) {
   renderer_compositor_frame_sink_->ReclaimResources(resources);
 }
 
 void RenderWidgetHostViewChildFrame::OnBeginFrame(
     const cc::BeginFrameArgs& args) {
   host_->Send(new ViewMsg_BeginFrame(host_->GetRoutingID(), args));
 }
 
+void RenderWidgetHostViewChildFrame::DidRejectCompositorFrame() {
+  NOTREACHED();
+}
+
 void RenderWidgetHostViewChildFrame::SetNeedsBeginFrames(
     bool needs_begin_frames) {
   if (support_)
     support_->SetNeedsBeginFrame(needs_begin_frames);
 }
 
 InputEventAckState RenderWidgetHostViewChildFrame::FilterInputEvent(
     const blink::WebInputEvent& input_event) {
   if (input_event.GetType() == blink::WebInputEvent::kGestureFlingStart) {
     const blink::WebGestureEvent& gesture_event =
@@ skipping 64 matching lines @@
                                                       frame_sink_id_);
   }
   support_.reset();
 }
 
 bool RenderWidgetHostViewChildFrame::HasEmbedderChanged() {
   return false;
 }
 
 }  // namespace content