Change WGC3DInProcessCBImpl factories to return a base class pointer.

content/browser/renderer_host/image_transport_factory_android.cc

Index: content/browser/renderer_host/image_transport_factory_android.cc
diff --git a/content/browser/renderer_host/image_transport_factory_android.cc b/content/browser/renderer_host/image_transport_factory_android.cc
index 5cfdbcf2e9832b77265c5aeffed0951c511b96dc..786a0189f49287a837ab4be6f9d4e411a5ca5dfd 100644
--- a/content/browser/renderer_host/image_transport_factory_android.cc
+++ b/content/browser/renderer_host/image_transport_factory_android.cc
@@ -47,7 +47,7 @@ class DirectGLImageTransportFactory : public ImageTransportFactoryAndroid {
   virtual GLHelper* GetGLHelper() OVERRIDE { return NULL; }
 
  private:
-  scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl> context_;
+  scoped_ptr<WebKit::WebGraphicsContext3D> context_;
 
   DISALLOW_COPY_AND_ASSIGN(DirectGLImageTransportFactory);
 };
@@ -56,8 +56,8 @@ DirectGLImageTransportFactory::DirectGLImageTransportFactory() {
   WebKit::WebGraphicsContext3D::Attributes attrs;
   attrs.shareResources = true;
   attrs.noAutomaticFlushes = true;
-  context_.reset(webkit::gpu::WebGraphicsContext3DInProcessCommandBufferImpl::
-                     CreateViewContext(attrs, NULL));
+  context_ = webkit::gpu::WebGraphicsContext3DInProcessCommandBufferImpl::
+      CreateViewContext(attrs, NULL);
   if (context_->makeContextCurrent())
     context_->pushGroupMarkerEXT(
         base::StringPrintf("DirectGLImageTransportFactory-%p", this).c_str());