mustash: enable GPU Compositing in renderer

content/renderer/render_view_impl.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/renderer/render_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/auto_reset.h"
@@ skipping 192 matching lines @@
 #include "content/renderer/npapi/webplugin_delegate_proxy.h"
 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
 #include "content/renderer/pepper/pepper_plugin_registry.h"
 #endif
 
 #if defined(ENABLE_WEBRTC)
 #include "content/renderer/media/rtc_peer_connection_handler.h"
 #include "content/renderer/media/webrtc/peer_connection_dependency_factory.h"
 #endif
 
+#if defined(MOJO_SHELL_CLIENT)
+#include "content/public/common/mojo_shell_connection.h"
+#include "content/renderer/render_widget_mus_connection.h"
+#endif
+
 using blink::WebAXObject;
 using blink::WebApplicationCacheHost;
 using blink::WebApplicationCacheHostClient;
 using blink::WebCString;
 using blink::WebColor;
 using blink::WebConsoleMessage;
 using blink::WebData;
 using blink::WebDataSource;
 using blink::WebDocument;
 using blink::WebDragData;
@@ skipping 1481 matching lines @@
     FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidStopLoading());
   }
 }
 
 void RenderViewImpl::AttachWebFrameWidget(blink::WebWidget* frame_widget) {
   // The previous WebFrameWidget must already be detached by CloseForFrame().
   DCHECK(!frame_widget_);
   frame_widget_ = frame_widget;
 }
 
+scoped_ptr<cc::OutputSurface> RenderViewImpl::CreateOutputSurface(
+    bool fallback) {
+  if (MojoShellConnection::Get()->GetApplication()) {

[Fady Samuel, 2015/11/30 23:06:54]

I would also put this whole block around

#if defined(MOJO_SHELL_CLIENT)
...

#endif

[Peng, 2015/12/01 15:22:46]

Done.

+    RenderWidgetMusConnection* connection =
+        RenderWidgetMusConnection::Get(routing_id());
+    return connection->CreateOutputSurface();
+  }
+  return RenderWidget::CreateOutputSurface(fallback);
+}
+
 void RenderViewImpl::SetZoomLevel(double zoom_level) {
   webview()->setZoomLevel(zoom_level);
   FOR_EACH_OBSERVER(RenderViewObserver, observers_, OnZoomLevelChanged());
 }
 
 void RenderViewImpl::didCancelCompositionOnSelectionChange() {
   Send(new InputHostMsg_ImeCancelComposition(routing_id()));
 }
 
 bool RenderViewImpl::handleCurrentKeyboardEvent() {
@@ skipping 1996 matching lines @@
   if (IsUseZoomForDSFEnabled()) {
     compositor_->SetPaintedDeviceScaleFactor(device_scale_factor_);
     webview()->setZoomFactorForDeviceScaleFactor(
         device_scale_factor_);
   } else {
     webview()->setDeviceScaleFactor(device_scale_factor_);
   }
 }
 
 }  // namespace content