cc: Route offscreen context creation for compositor to the browser.

webkit/compositor_bindings/web_layer_tree_view_impl.cc

 // Copyright 2011 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 "web_layer_tree_view_impl.h"
 
 #include "base/command_line.h"
 #include "base/string_number_conversions.h"
 #include "cc/font_atlas.h"
 #include "cc/input_handler.h"
 #include "cc/layer.h"
 #include "cc/layer_tree_host.h"
 #include "cc/thread.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebGraphicsContext3D.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebInputHandler.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebLayer.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebLayerTreeViewClient.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebLayerTreeView.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebRenderingStats.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/WebSharedGraphicsContext3D.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebSize.h"
 #include "web_layer_impl.h"
 #include "web_to_ccinput_handler_adapter.h"
 #include "webkit/compositor_bindings/web_rendering_stats_impl.h"
 
 using namespace cc;
 
 namespace WebKit {
 
 WebLayerTreeViewImpl::WebLayerTreeViewImpl(WebLayerTreeViewClient* client)
@@ skipping 228 matching lines @@
 {
     WebKit::WebCompositorOutputSurface* web = m_client->createOutputSurface();
     return make_scoped_ptr(static_cast<cc::OutputSurface*>(web));
 }
 
 void WebLayerTreeViewImpl::didRecreateOutputSurface(bool success)
 {
     m_client->didRecreateOutputSurface(success);
 }
 
+WebKit::WebGraphicsContext3D* WebLayerTreeViewImpl::OffscreenContext3dForMainThread()
+{
+    return WebSharedGraphicsContext3D::mainThreadContext();

[danakj, 2013/02/12 07:34:04]

Should this be going right to the webkit/ version of WebKitPlatformSupport in
the future?

+}
+
+WebKit::WebGraphicsContext3D* WebLayerTreeViewImpl::OffscreenContext3dForCompositorThread()
+{
+    if (!WebSharedGraphicsContext3D::haveCompositorThreadContext() && !WebSharedGraphicsContext3D::createCompositorThreadContext())
+        return NULL;
+    return WebSharedGraphicsContext3D::compositorThreadContext();
+}
+
 scoped_ptr<InputHandler> WebLayerTreeViewImpl::createInputHandler()
 {
     scoped_ptr<InputHandler> ret;
     scoped_ptr<WebInputHandler> handler(m_client->createInputHandler());
     if (handler)
         ret = WebToCCInputHandlerAdapter::create(handler.Pass());
     return ret.Pass();
 }
 
 void WebLayerTreeViewImpl::willCommit()
@@ skipping 15 matching lines @@
 {
     m_client->didCompleteSwapBuffers();
 }
 
 void WebLayerTreeViewImpl::scheduleComposite()
 {
     m_client->scheduleComposite();
 }
 
 } // namespace WebKit