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

cc/layers/layer_utils_unittest.cc

Index: cc/layers/layer_utils_unittest.cc
diff --git a/cc/layers/layer_utils_unittest.cc b/cc/layers/layer_utils_unittest.cc
index 534a691e47b2c031b6914ebcf9b8754aadb8eea5..842688ef1e6f4c47a0c021c17b72eb8d1689fa43 100644
--- a/cc/layers/layer_utils_unittest.cc
+++ b/cc/layers/layer_utils_unittest.cc
@@ -7,7 +7,7 @@
 #include "cc/animation/transform_operations.h"
 #include "cc/layers/layer_impl.h"
 #include "cc/test/animation_test_common.h"
-#include "cc/test/fake_impl_proxy.h"
+#include "cc/test/fake_impl_task_runner_provider.h"
 #include "cc/test/fake_layer_tree_host_impl.h"
 #include "cc/test/test_shared_bitmap_manager.h"
 #include "cc/test/test_task_graph_runner.h"
@@ -25,7 +25,9 @@ float diagonal(float width, float height) {
 class LayerUtilsGetAnimationBoundsTest : public testing::Test {
  public:
   LayerUtilsGetAnimationBoundsTest()
-      : host_impl_(&proxy_, &shared_bitmap_manager_, &task_graph_runner_),
+      : host_impl_(&task_runner_provider_,
+                   &shared_bitmap_manager_,
+                   &task_graph_runner_),
         root_(CreateThreeNodeTree(&host_impl_)),
         parent_(root_->children()[0]),
         child_(parent_->children()[0]) {}
@@ -44,7 +46,7 @@ class LayerUtilsGetAnimationBoundsTest : public testing::Test {
     return root.Pass();
   }
 
-  FakeImplProxy proxy_;
+  FakeImplTaskRunnerProvider task_runner_provider_;
   TestSharedBitmapManager shared_bitmap_manager_;
   TestTaskGraphRunner task_graph_runner_;
   FakeLayerTreeHostImpl host_impl_;