DO NOT COMMIT - fn port to RenderNode, work in progress, does not work

sky/shell/ui/engine.cc

 // Copyright 2015 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 "sky/shell/ui/engine.h"
 
 #include "base/bind.h"
 #include "base/trace_event/trace_event.h"
 #include "mojo/public/cpp/application/connect.h"
 #include "sky/engine/public/platform/WebInputEvent.h"
@@ skipping 49 matching lines @@
   mojo::NetworkServicePtr network_service;
   mojo::ConnectToService(service_provider_.get(), &network_service);
   platform_impl_.reset(new PlatformImpl(network_service.Pass()));
 
   blink::initialize(platform_impl_.get());
 }
 
 void Engine::BeginFrame(base::TimeTicks frame_time) {
   TRACE_EVENT0("sky", "Engine::BeginFrame");
 
-  double frame_time_sec = (frame_time - base::TimeTicks()).InSecondsF();
-  double deadline_sec = frame_time_sec;
-  double interval_sec = 1.0 / 60;
-  blink::WebBeginFrameArgs args(frame_time_sec, deadline_sec, interval_sec);
-
   if (sky_view_)
     sky_view_->BeginFrame(frame_time);
 
   if (web_view_) {
+    double frame_time_sec = (frame_time - base::TimeTicks()).InSecondsF();
+    double deadline_sec = frame_time_sec;
+    double interval_sec = 1.0 / 60;
+    blink::WebBeginFrameArgs args(frame_time_sec, deadline_sec, interval_sec);
     web_view_->beginFrame(args);
     web_view_->layout();
   }
 }
 
 skia::RefPtr<SkPicture> Engine::Paint() {
   TRACE_EVENT0("sky", "Engine::Paint");
 
   SkRTreeFactory factory;
   SkPictureRecorder recorder;
@@ skipping 145 matching lines @@
 
 void Engine::DidNavigateLocally(const mojo::String& url) {
 }
 
 void Engine::RequestNavigateHistory(int32_t delta) {
   NOTIMPLEMENTED();
 }
 
 }  // namespace shell
 }  // namespace sky