cc:: Add remote mode to the compositor

cc/test/test_hooks.h

 // Copyright 2015 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_TEST_HOOKS_H_
 #define CC_TEST_TEST_HOOKS_H_
 
 #include "base/macros.h"
 #include "cc/animation/animation_delegate.h"
 #include "cc/trees/layer_tree_host.h"
 #include "cc/trees/layer_tree_host_impl.h"
 
 namespace cc {
 
+namespace proto {
+class CompositorMessageToImpl;
+}
+
 // Used by test stubs to notify the test when something interesting happens.
 class TestHooks : public AnimationDelegate {
  public:
   TestHooks();
   ~TestHooks() override;
 
   void ReadSettings(const LayerTreeSettings& settings);
 
   virtual void CreateResourceAndTileTaskWorkerPool(
       LayerTreeHostImpl* host_impl,
@@ skipping 103 matching lines @@
                               Animation::TargetProperty target_property,
                               int group) override {}
   void NotifyAnimationFinished(base::TimeTicks monotonic_time,
                                Animation::TargetProperty target_property,
                                int group) override {}
   void NotifyAnimationAborted(base::TimeTicks monotonic_time,
                               Animation::TargetProperty target_property,
                               int group) override {}
 
   virtual void RequestNewOutputSurface() = 0;
+
+  // Used to notify the test to create the Remote client LayerTreeHost on
+  // receiving a CompositorMessageToImpl of type INITIALIZE_IMPL.
+  virtual void CreateRemoteClientHost(
+      const proto::CompositorMessageToImpl& proto) {}
+
+  // Used to notify the test to destroy the Remote client LayerTreeHost on
+  // receiving a CompositorMessageToImpl of type CLOSE_IMPL.
+  virtual void DestroyRemoteClientHost() {}
 };
 
 }  // namespace cc
 
 #endif  // CC_TEST_TEST_HOOKS_H_