Add ContextProvider overrides to SynchronousCompositorFactory

content/browser/android/in_process/synchronous_compositor_impl.cc

 // Copyright 2013 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/android/in_process/synchronous_compositor_impl.h"
 
 #include "base/lazy_instance.h"
 #include "base/message_loop.h"
 #include "content/browser/android/in_process/synchronous_input_event_filter.h"
 #include "content/public/browser/android/synchronous_compositor_client.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/renderer/android/synchronous_compositor_factory.h"
+#include "webkit/common/gpu/context_provider_in_process.h"
 
 namespace content {
 
 namespace {
 
 int GetInProcessRendererId() {
   content::RenderProcessHost::iterator it =
       content::RenderProcessHost::AllHostsIterator();
   if (it.IsAtEnd()) {
     // There should always be one RPH in single process mode.
@@ skipping 27 matching lines @@
   }
 
   virtual InputHandlerManagerClient* GetInputHandlerManagerClient() OVERRIDE {
     return synchronous_input_event_filter();
   }
 
   SynchronousInputEventFilter* synchronous_input_event_filter() {
     return &synchronous_input_event_filter_;
   }
 
+  virtual scoped_refptr<cc::ContextProvider>
+      GetOffscreenContextProviderForMainThread() OVERRIDE {
+    NOTIMPLEMENTED()
+        << "Synchronous compositor does not support main thread context yet.";
+    return scoped_refptr<cc::ContextProvider>();
+  }
+
+  virtual scoped_refptr<cc::ContextProvider>
+      GetOffscreenContextProviderForCompositorThread() OVERRIDE {
+    if (!offscreen_context_for_compositor_thread_ ||
+        offscreen_context_for_compositor_thread_->DestroyedOnMainThread()) {
+      offscreen_context_for_compositor_thread_ =
+          webkit::gpu::ContextProviderInProcess::Create();
+    }
+    return offscreen_context_for_compositor_thread_;
+  }
+
  private:
   SynchronousInputEventFilter synchronous_input_event_filter_;
+  scoped_refptr<cc::ContextProvider> offscreen_context_for_compositor_thread_;
 };
 
 base::LazyInstance<SynchronousCompositorFactoryImpl>::Leaky g_factory =
     LAZY_INSTANCE_INITIALIZER;
 
 }  // namespace
 
 DEFINE_WEB_CONTENTS_USER_DATA_KEY(SynchronousCompositorImpl);
 
 // static
@@ skipping 105 matching lines @@
     g_factory.Get();  // Ensure it's initialized.
     SynchronousCompositorImpl::CreateForWebContents(contents);
   }
   if (SynchronousCompositorImpl* instance =
       SynchronousCompositorImpl::FromWebContents(contents)) {
     instance->SetClient(client);
   }
 }
 
 }  // namespace content