cc:: Add remote mode to the compositor

cc/test/proxy_main_for_test.h

Index: cc/test/proxy_main_for_test.h
diff --git a/cc/test/proxy_main_for_test.h b/cc/test/proxy_main_for_test.h
index 42f8a95c3e243087416e4a1e850c03adc6cd2c48..b3241882315cda52d738f127743372a77dcc403d 100644
--- a/cc/test/proxy_main_for_test.h
+++ b/cc/test/proxy_main_for_test.h
@@ -10,22 +10,33 @@
 #include "cc/trees/proxy_main.h"
 
 namespace cc {
+class ThreadedChannelForTest;
 
 // Creates a ProxyMain that notifies the supplied |test_hooks| of various
 // actions.
 class ProxyMainForTest : public ProxyMain {
  public:
-  static scoped_ptr<ProxyMain> CreateThreaded(
+  static scoped_ptr<ProxyMainForTest> CreateThreaded(
       TestHooks* test_hooks,
       LayerTreeHost* host,
       TaskRunnerProvider* task_runner_provider);
 
+  static scoped_ptr<ProxyMainForTest> CreateRemote(
+      TestHooks* test_hooks,
+      RemoteProtoChannel* remote_proto_channel,
+      LayerTreeHost* host,
+      TaskRunnerProvider* task_runner_provider);
+
   ~ProxyMainForTest() override;
 
   ProxyMainForTest(TestHooks* test_hooks,
                    LayerTreeHost* host,
                    TaskRunnerProvider* task_runner_provider);
 
+  ThreadedChannelForTest* threaded_channel_for_test() const {
+    return threaded_channel_for_test_;
+  }
+
   void SetNeedsUpdateLayers() override;
   void DidCompleteSwapBuffers() override;
   void SetRendererCapabilities(
@@ -47,6 +58,7 @@ class ProxyMainForTest : public ProxyMain {
       scoped_ptr<BeginMainFrameAndCommitState> begin_main_frame_state) override;
 
   TestHooks* test_hooks_;
+  ThreadedChannelForTest* threaded_channel_for_test_;
 };
 
 }  // namespace cc