Use ContextProvider subclass to provide WGC3D pointers

content/renderer/renderer_webkitplatformsupport_impl.cc

Index: content/renderer/renderer_webkitplatformsupport_impl.cc
diff --git a/content/renderer/renderer_webkitplatformsupport_impl.cc b/content/renderer/renderer_webkitplatformsupport_impl.cc
index c7fa2715a59a8d381cb6f46b65fda3da8b67d219..8644a9ca0b4b64b1631a7d91800883505a06b6e2 100644
--- a/content/renderer/renderer_webkitplatformsupport_impl.cc
+++ b/content/renderer/renderer_webkitplatformsupport_impl.cc
@@ -48,6 +48,7 @@
 #include "content/renderer/renderer_clipboard_client.h"
 #include "content/renderer/webclipboard_impl.h"
 #include "content/renderer/webcrypto/webcrypto_impl.h"
+#include "content/renderer/webgraphicscontext3d_provider_impl.h"
 #include "content/renderer/webpublicsuffixlist_impl.h"
 #include "gpu/config/gpu_info.h"
 #include "ipc/ipc_sync_message_filter.h"
@@ -70,7 +71,7 @@
 #include "third_party/WebKit/public/web/WebRuntimeFeatures.h"
 #include "ui/gfx/color_profile.h"
 #include "url/gurl.h"
-#include "webkit/common/gpu/webgraphicscontext3d_provider_impl.h"
+#include "webkit/common/gpu/context_provider_web_context.h"
 #include "webkit/common/quota/quota_types.h"
 #include "webkit/glue/simple_webmimeregistry_impl.h"
 #include "webkit/glue/webfileutilities_impl.h"
@@ -968,11 +969,11 @@ RendererWebKitPlatformSupportImpl::createOffscreenGraphicsContext3D(
 
 blink::WebGraphicsContext3DProvider* RendererWebKitPlatformSupportImpl::
     createSharedOffscreenGraphicsContext3DProvider() {
-  scoped_refptr<cc::ContextProvider> provider =
+  scoped_refptr<webkit::gpu::ContextProviderWebContext> provider =
       RenderThreadImpl::current()->SharedMainThreadContextProvider();
   if (!provider)
     return NULL;
-  return new webkit::gpu::WebGraphicsContext3DProviderImpl(provider);
+  return new WebGraphicsContext3DProviderImpl(provider);
 }
 
 //------------------------------------------------------------------------------