Move remaining Blimp feature code to core.

blimp/client/feature/mock_render_widget_feature_delegate.h

-// Copyright 2016 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 BLIMP_CLIENT_FEATURE_MOCK_RENDER_WIDGET_FEATURE_DELEGATE_H_
-#define BLIMP_CLIENT_FEATURE_MOCK_RENDER_WIDGET_FEATURE_DELEGATE_H_
-
-#include <string>
-
-#include "blimp/client/feature/render_widget_feature.h"
-#include "testing/gmock/include/gmock/gmock.h"
-
-namespace blimp {
-namespace client {
-
-class MockRenderWidgetFeatureDelegate
-    : public RenderWidgetFeature::RenderWidgetFeatureDelegate {
- public:
-  MockRenderWidgetFeatureDelegate();
-  ~MockRenderWidgetFeatureDelegate() override;
-
-  MOCK_METHOD1(OnRenderWidgetCreated, void(int render_widget_id));
-  MOCK_METHOD1(OnRenderWidgetInitialized, void(int render_widget_id));
-  MOCK_METHOD1(OnRenderWidgetDeleted, void(int render_widget_id));
-  MOCK_METHOD2(MockableOnCompositorMessageReceived,
-               void(int render_widget_id,
-                    cc::proto::CompositorMessage* message));
-
-  void OnCompositorMessageReceived(
-      int render_widget_id,
-      std::unique_ptr<cc::proto::CompositorMessage> message) override;
-};
-
-}  // namespace client
-}  // namespace blimp
-
-#endif  // BLIMP_CLIENT_FEATURE_MOCK_RENDER_WIDGET_FEATURE_DELEGATE_H_