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

cc/test/fake_ui_resource_layer_tree_host_impl.cc

Index: cc/test/fake_ui_resource_layer_tree_host_impl.cc
diff --git a/cc/test/fake_ui_resource_layer_tree_host_impl.cc b/cc/test/fake_ui_resource_layer_tree_host_impl.cc
index a5320f4ad348b8a87fbf22831b0d35379ffafe29..fd60c3544c9c05eb185dc512c3956efc5c939c46 100644
--- a/cc/test/fake_ui_resource_layer_tree_host_impl.cc
+++ b/cc/test/fake_ui_resource_layer_tree_host_impl.cc
@@ -10,11 +10,10 @@
 namespace cc {
 
 FakeUIResourceLayerTreeHostImpl::FakeUIResourceLayerTreeHostImpl(
-    Proxy* proxy,
+    TaskRunnerProvider* task_runner_provider,
     SharedBitmapManager* manager,
     TaskGraphRunner* task_graph_runner)
-    : FakeLayerTreeHostImpl(proxy, manager, task_graph_runner) {
-}
+    : FakeLayerTreeHostImpl(task_runner_provider, manager, task_graph_runner) {}
 
 FakeUIResourceLayerTreeHostImpl::~FakeUIResourceLayerTreeHostImpl() {}