[exp] cc: Introduce cc::CompositorMutator.

cc/trees/tree_synchronizer_unittest.cc

 // Copyright 2011 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/trees/tree_synchronizer.h"
 
 #include <algorithm>
 #include <set>
 #include <vector>
 
@@ skipping 538 matching lines @@
 }
 
 TEST_F(TreeSynchronizerTest, SynchronizeAnimations) {
   LayerTreeSettings settings;
   FakeProxy proxy;
   DebugScopedSetImplThread impl(&proxy);
   FakeRenderingStatsInstrumentation stats_instrumentation;
   scoped_ptr<SharedBitmapManager> shared_bitmap_manager(
       new TestSharedBitmapManager());
   scoped_ptr<LayerTreeHostImpl> host_impl =
-      LayerTreeHostImpl::Create(settings,
-                                NULL,
-                                &proxy,
-                                &stats_instrumentation,
-                                shared_bitmap_manager.get(),
-                                NULL,
-                                0);
+      LayerTreeHostImpl::Create(settings, NULL, &proxy, &stats_instrumentation,
+                                shared_bitmap_manager.get(), NULL, NULL, 0);
 
   scoped_refptr<Layer> layer_tree_root = Layer::Create();
   host_->SetRootLayer(layer_tree_root);
 
   layer_tree_root->SetLayerAnimationControllerForTest(
       FakeLayerAnimationController::Create());
 
   EXPECT_FALSE(static_cast<FakeLayerAnimationController*>(
       layer_tree_root->layer_animation_controller())->SynchronizedAnimations());
 
@@ skipping 12 matching lines @@
 }
 
 TEST_F(TreeSynchronizerTest, SynchronizeScrollParent) {
   LayerTreeSettings settings;
   FakeProxy proxy;
   DebugScopedSetImplThread impl(&proxy);
   FakeRenderingStatsInstrumentation stats_instrumentation;
   scoped_ptr<SharedBitmapManager> shared_bitmap_manager(
       new TestSharedBitmapManager());
   scoped_ptr<LayerTreeHostImpl> host_impl =
-      LayerTreeHostImpl::Create(settings,
-                                NULL,
-                                &proxy,
-                                &stats_instrumentation,
-                                shared_bitmap_manager.get(),
-                                NULL,
-                                0);
+      LayerTreeHostImpl::Create(settings, NULL, &proxy, &stats_instrumentation,
+                                shared_bitmap_manager.get(), NULL, NULL, 0);
 
   scoped_refptr<Layer> layer_tree_root = Layer::Create();
   scoped_refptr<Layer> scroll_parent = Layer::Create();
   layer_tree_root->AddChild(scroll_parent);
   layer_tree_root->AddChild(Layer::Create());
   layer_tree_root->AddChild(Layer::Create());
 
   host_->SetRootLayer(layer_tree_root);
 
   // First child is the second and third child's scroll parent.
@@ skipping 46 matching lines @@
 }
 
 TEST_F(TreeSynchronizerTest, SynchronizeClipParent) {
   LayerTreeSettings settings;
   FakeProxy proxy;
   DebugScopedSetImplThread impl(&proxy);
   FakeRenderingStatsInstrumentation stats_instrumentation;
   scoped_ptr<SharedBitmapManager> shared_bitmap_manager(
       new TestSharedBitmapManager());
   scoped_ptr<LayerTreeHostImpl> host_impl =
-      LayerTreeHostImpl::Create(settings,
-                                NULL,
-                                &proxy,
-                                &stats_instrumentation,
-                                shared_bitmap_manager.get(),
-                                NULL,
-                                0);
+      LayerTreeHostImpl::Create(settings, NULL, &proxy, &stats_instrumentation,
+                                shared_bitmap_manager.get(), NULL, NULL, 0);
 
   scoped_refptr<Layer> layer_tree_root = Layer::Create();
   scoped_refptr<Layer> clip_parent = Layer::Create();
   scoped_refptr<Layer> intervening = Layer::Create();
   scoped_refptr<Layer> clip_child1 = Layer::Create();
   scoped_refptr<Layer> clip_child2 = Layer::Create();
   layer_tree_root->AddChild(clip_parent);
   clip_parent->AddChild(intervening);
   intervening->AddChild(clip_child1);
   intervening->AddChild(clip_child2);
@@ skipping 55 matching lines @@
                           host_impl->active_tree());
 
   // The clip children should have been unhooked.
   EXPECT_EQ(2u, intervening->children().size());
   EXPECT_FALSE(clip_child2->clip_parent());
   EXPECT_FALSE(additional_clip_child->clip_parent());
 }
 
 }  // namespace
 }  // namespace cc