cc: Split Proxy to eliminate unnecessary dependencies on the impl side

cc/layers/nine_patch_layer_impl_unittest.cc

Index: cc/layers/nine_patch_layer_impl_unittest.cc
diff --git a/cc/layers/nine_patch_layer_impl_unittest.cc b/cc/layers/nine_patch_layer_impl_unittest.cc
index 50162f0f3bb84e8e7d98370ea539efb1b823e5aa..bed02d06171cb527403f1a5571e7a639adb06250 100644
--- a/cc/layers/nine_patch_layer_impl_unittest.cc
+++ b/cc/layers/nine_patch_layer_impl_unittest.cc
@@ -8,7 +8,7 @@
 #include "cc/quads/texture_draw_quad.h"
 #include "cc/resources/ui_resource_bitmap.h"
 #include "cc/resources/ui_resource_client.h"
-#include "cc/test/fake_impl_proxy.h"
+#include "cc/test/fake_impl_task_runner_provider.h"
 #include "cc/test/fake_output_surface.h"
 #include "cc/test/fake_ui_resource_layer_tree_host_impl.h"
 #include "cc/test/geometry_test_utils.h"
@@ -43,12 +43,12 @@ void NinePatchLayerLayoutTest(const gfx::Size& bitmap_size,
                                layer_size.width() - border.width(),
                                layer_size.height() - border.height());
 
-  FakeImplProxy proxy;
+  FakeImplTaskRunnerProvider task_runner_provider;
   TestSharedBitmapManager shared_bitmap_manager;
   TestTaskGraphRunner task_graph_runner;
   scoped_ptr<OutputSurface> output_surface = FakeOutputSurface::Create3d();
-  FakeUIResourceLayerTreeHostImpl host_impl(&proxy, &shared_bitmap_manager,
-                                            &task_graph_runner);
+  FakeUIResourceLayerTreeHostImpl host_impl(
+      &task_runner_provider, &shared_bitmap_manager, &task_graph_runner);
   host_impl.SetVisible(true);
   host_impl.InitializeRenderer(output_surface.get());