cc: Split Proxy and TaskRunnerProvider for the LayerTreeHost

cc/test/fake_proxy.h

Index: cc/test/fake_proxy.h
diff --git a/cc/test/fake_proxy.h b/cc/test/fake_proxy.h
index d2b9b384fa70bbc4a762e49653a210013a37efcc..675e7bbb06124df504b0f161ed4b144181c0be20 100644
--- a/cc/test/fake_proxy.h
+++ b/cc/test/fake_proxy.h
@@ -13,12 +13,6 @@ namespace cc {
 
 class FakeProxy : public Proxy {

[vmpstr, 2015/11/10 21:59:34]

Is fake proxy still being used?

We need to either remove it if it's not, or keep at least the default ctor if it
is.

[Khushal, 2015/11/10 23:34:03]

Yes. The LayerTreeTests still need it, added the default constructor.

  public:
-  FakeProxy() : Proxy(NULL, NULL), layer_tree_host_(NULL) {}
-  explicit FakeProxy(
-      scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
-      scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner)
-      : Proxy(main_task_runner, impl_task_runner), layer_tree_host_(NULL) {}
-
   void SetLayerTreeHost(LayerTreeHost* host);
 
   void FinishAllRendering() override {}