Move skia related files from content/common/gpu/client to gpu/skia_bindings.

cc/test/test_context_provider.h

Index: cc/test/test_context_provider.h
diff --git a/cc/test/test_context_provider.h b/cc/test/test_context_provider.h
index 99d15c8b30dc05ae1f22e0fb2b5b168fb05cca48..dcfd4748efeeb3729b751cc02490005a52709bdd 100644
--- a/cc/test/test_context_provider.h
+++ b/cc/test/test_context_provider.h
@@ -20,6 +20,10 @@
 #include "gpu/command_buffer/client/gles2_interface_stub.h"
 #include "skia/ext/refptr.h"
 
+namespace skia_bindings {
+class GrContextForGLES2Interface;
+}
+
 namespace cc {
 class TestWebGraphicsContext3D;
 class TestGLES2Interface;
@@ -80,7 +84,7 @@ class TestContextProvider : public ContextProvider {
   base::Lock context_lock_;
 
   LostContextCallback lost_context_callback_;
-  skia::RefPtr<class GrContext> gr_context_;
+  std::unique_ptr<skia_bindings::GrContextForGLES2Interface> gr_context_;
 
   base::WeakPtrFactory<TestContextProvider> weak_ptr_factory_;