CC Animations: Make LayerAnimationController creation optional

cc/test/layer_tree_test.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/test/layer_tree_test.h"
 
 #include "base/command_line.h"
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
 #include "base/thread_task_runner_handle.h"
@@ skipping 676 matching lines @@
   // Allow commits to happen once BeginTest() has had a chance to post tasks
   // so that those tasks will happen before the first commit.
   if (layer_tree_host_) {
     static_cast<LayerTreeHostForTesting*>(layer_tree_host_.get())
         ->set_test_started(true);
   }
 }
 
 void LayerTreeTest::SetupTree() {
   if (!layer_tree_host_->root_layer()) {
-    scoped_refptr<Layer> root_layer = Layer::Create();
+    scoped_refptr<Layer> root_layer = Layer::Create(layer_settings_);
     root_layer->SetBounds(gfx::Size(1, 1));
     root_layer->SetIsDrawable(true);
     layer_tree_host_->SetRootLayer(root_layer);
   }
 
   gfx::Size root_bounds = layer_tree_host_->root_layer()->bounds();
   gfx::Size device_root_bounds = gfx::ToCeiledSize(
       gfx::ScaleSize(root_bounds, layer_tree_host_->device_scale_factor()));
   layer_tree_host_->SetViewportSize(device_root_bounds);
 }
@@ skipping 95 matching lines @@
 
   delegating_renderer_ = delegating_renderer;
 
   // Spend less time waiting for BeginFrame because the output is
   // mocked out.
   settings_.renderer_settings.refresh_rate = 200.0;
   settings_.background_animation_rate = 200.0;
   settings_.impl_side_painting = impl_side_painting;
   settings_.verify_property_trees = verify_property_trees_;
   InitializeSettings(&settings_);
+  InitializeLayerSettings(&layer_settings_);
 
   main_task_runner_->PostTask(
       FROM_HERE,
       base::Bind(&LayerTreeTest::DoBeginTest, base::Unretained(this)));
 
   if (timeout_seconds_) {
     timeout_.Reset(base::Bind(&LayerTreeTest::Timeout, base::Unretained(this)));
     main_task_runner_->PostDelayedTask(
         FROM_HERE,
         timeout_.callback(),
@@ skipping 66 matching lines @@
 LayerTreeHost* LayerTreeTest::layer_tree_host() {
   // We check for a null proxy here as we sometimes ask for the layer tree host
   // when the proxy does not exist, often for checking settings after a test has
   // completed. For example, LTHPixelResourceTest::RunPixelResourceTest. See
   // elsewhere in this file for other examples.
   DCHECK(!proxy() || proxy()->IsMainThread() || proxy()->IsMainThreadBlocked());
   return layer_tree_host_.get();
 }
 
 }  // namespace cc