aura: use TestWebGraphicsContext3D for the shared contexts

content/browser/renderer_host/image_transport_factory.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/image_transport_factory.h"
 
 #include <algorithm>
 #include <map>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/memory/ref_counted.h"
 #include "base/observer_list.h"
 #include "content/browser/gpu/browser_gpu_channel_host_factory.h"
 #include "content/browser/gpu/gpu_surface_tracker.h"
 #include "content/common/gpu/client/gl_helper.h"
 #include "content/common/gpu/client/gpu_channel_host.h"
 #include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
 #include "content/common/gpu/gpu_process_launch_causes.h"
+#include "content/common/webkitplatformsupport_impl.h"
 #include "content/public/common/content_switches.h"
 #include "gpu/ipc/command_buffer_proxy.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebGraphicsContext3D.h"
 #include "ui/compositor/compositor.h"
 #include "ui/compositor/compositor_setup.h"
+#include "ui/compositor/test_web_graphics_context_3d.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/size.h"
 
 using content::BrowserGpuChannelHostFactory;
 using content::GLHelper;
 
 namespace {
 
 ImageTransportFactory* g_factory;
 
@@ skipping 332 matching lines @@
   ObserverList<ImageTransportFactoryObserver> observer_list_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuProcessTransportFactory);
 };
 
 void CompositorSwapClient::OnLostContext() {
   factory_->OnLostContext(compositor_);
   // Note: previous line destroyed this. Don't access members from now on.
 }
 
+WebKit::WebGraphicsContext3D* CreateTestContext() {
+  ui::TestWebGraphicsContext3D* test_context =
+      new ui::TestWebGraphicsContext3D();
+  test_context->Initialize();
+  return test_context;
+}
+
 }  // anonymous namespace
 
 // static
 void ImageTransportFactory::Initialize() {
   CommandLine* command_line = CommandLine::ForCurrentProcess();
   if (command_line->HasSwitch(switches::kTestCompositor)) {
     ui::SetupTestCompositor();
   }
   if (ui::IsTestCompositorEnabled()) {
     g_factory = new DefaultTransportFactory();
+    content::WebKitPlatformSupportImpl::SetOffscreenContextFactoryForTest(
+        CreateTestContext);
   } else {
 #if defined(OS_WIN)
     g_factory = new DefaultTransportFactory();
 #else
     g_factory = new GpuProcessTransportFactory();
 #endif
   }
   ui::ContextFactory::SetInstance(g_factory->AsContextFactory());
 }
 
 // static
 void ImageTransportFactory::Terminate() {
   ui::ContextFactory::SetInstance(NULL);
   delete g_factory;
   g_factory = NULL;
 }
 
 // static
 ImageTransportFactory* ImageTransportFactory::GetInstance() {
   return g_factory;
 }