[Mojo] Remove dependency between mojo/public and gpu

mojo/examples/sample_app/gles2_client_impl.h

+// 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.
+
+#ifndef MOJO_EXAMPLES_SAMPLE_APP_GLES2_CLIENT_IMPL_H_
+#define MOJO_EXAMPLES_SAMPLE_APP_GLES2_CLIENT_IMPL_H_
+
+#include "base/timer/timer.h"
+#include "mojo/examples/sample_app/spinning_cube.h"
+#include "mojo/public/bindings/lib/remote_ptr.h"
+#include "mojom/gles2.h"
+
+namespace mojo {
+namespace examples {
+
+class GLES2ClientImpl : public GLES2ClientStub {
+ public:
+  explicit GLES2ClientImpl(ScopedMessagePipeHandle pipe);
+  virtual ~GLES2ClientImpl();
+
+ private:
+  virtual void DidCreateContext(uint64_t encoded,
+                                uint32_t width,
+                                uint32_t height) MOJO_OVERRIDE;
+  virtual void ContextLost() MOJO_OVERRIDE;
+
+  void Draw();
+
+  base::Time last_time_;
+  base::RepeatingTimer<GLES2ClientImpl> timer_;
+  SpinningCube cube_;
+
+  RemotePtr<GLES2> service_;
+
+  MOJO_DISALLOW_COPY_AND_ASSIGN(GLES2ClientImpl);
+};
+
+}  // namespace examples
+}  // namespace mojo
+
+#endif  // MOJO_EXAMPLES_SAMPLE_APP_GLES2_CLIENT_IMPL_H_