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

cc/test/fake_layer_tree_host_impl.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/test/begin_frame_args_test.h"
 #include "cc/test/fake_layer_tree_host_impl.h"
 #include "cc/test/test_shared_bitmap_manager.h"
 #include "cc/trees/layer_tree_impl.h"
 
 namespace cc {
 
-FakeLayerTreeHostImpl::FakeLayerTreeHostImpl(Proxy* proxy,
+FakeLayerTreeHostImpl::FakeLayerTreeHostImpl(ThreadVerifier* thread_verifier,
                                              SharedBitmapManager* manager,
                                              TaskGraphRunner* task_graph_runner)
     : FakeLayerTreeHostImpl(LayerTreeSettings(),
-                            proxy,
+                            thread_verifier,
                             manager,
                             task_graph_runner,
                             nullptr) {}
 
 FakeLayerTreeHostImpl::FakeLayerTreeHostImpl(const LayerTreeSettings& settings,
-                                             Proxy* proxy,
+                                             ThreadVerifier* thread_verifier,
                                              SharedBitmapManager* manager,
                                              TaskGraphRunner* task_graph_runner)
     : FakeLayerTreeHostImpl(settings,
-                            proxy,
+                            thread_verifier,
                             manager,
                             task_graph_runner,
                             nullptr) {}
 
 FakeLayerTreeHostImpl::FakeLayerTreeHostImpl(
     const LayerTreeSettings& settings,
-    Proxy* proxy,
+    ThreadVerifier* thread_verifier,
     SharedBitmapManager* manager,
     TaskGraphRunner* task_graph_runner,
     gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager)
     : LayerTreeHostImpl(settings,
                         &client_,
-                        proxy,
+                        thread_verifier,
                         &stats_instrumentation_,
                         manager,
                         gpu_memory_buffer_manager,
                         task_graph_runner,
                         0) {
   // Explicitly clear all debug settings.
   SetDebugState(LayerTreeDebugState());
   SetViewportSize(gfx::Size(100, 100));
 
   // Start an impl frame so tests have a valid frame_time to work with.
@@ skipping 40 matching lines @@
 
 void FakeLayerTreeHostImpl::UpdateNumChildrenAndDrawProperties(
     LayerTreeImpl* layerTree) {
   RecursiveUpdateNumChildren(layerTree->root_layer());
   bool update_lcd_text = false;
   layerTree->BuildPropertyTreesForTesting();
   layerTree->UpdateDrawProperties(update_lcd_text);
 }
 
 }  // namespace cc