cc/blimp: Add a LayerTreeHostRemote implementation.

cc/test/fake_remote_compositor_bridge.h

Index: cc/test/fake_remote_compositor_bridge.h
diff --git a/cc/test/fake_remote_compositor_bridge.h b/cc/test/fake_remote_compositor_bridge.h
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+// 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 CC_TEST_FAKE_REMOTE_COMPOSITOR_BRIDGE_H_
+#define CC_TEST_FAKE_REMOTE_COMPOSITOR_BRIDGE_H_
+
+#include <memory>
+
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "cc/blimp/compositor_proto_state.h"
+#include "cc/blimp/remote_compositor_bridge.h"
+
+namespace cc {
+
+// An implementation of the RemoteCompositorBridge for tests that pump
+// BeginMainFrames as soon as the client requests them.
+class FakeRemoteCompositorBridge : public RemoteCompositorBridge {
+ public:
+  FakeRemoteCompositorBridge(
+      scoped_refptr<base::SingleThreadTaskRunner> compositor_main_task_runner);
+  ~FakeRemoteCompositorBridge() override;
+
+  // RemoteCompositorBridge implementation.
+  void BindToClient(RemoteCompositorBridgeClient* client) override;
+  void ScheduleMainFrame() override;
+  void ProcessCompositorStateUpdate(
+      std::unique_ptr<CompositorProtoState> compositor_proto_state) override {}
+
+ private:
+  void BeginMainFrame();
+
+  RemoteCompositorBridgeClient* client_;
+  base::WeakPtrFactory<FakeRemoteCompositorBridge> weak_factory_;
+};
+
+}  // namespace cc
+
+#endif  // CC_TEST_FAKE_REMOTE_COMPOSITOR_BRIDGE_H_