CC Animations: Enable external animation host for blink.

content/test/web_layer_tree_view_impl_for_testing.cc

 // Copyright 2013 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 "content/test/web_layer_tree_view_impl_for_testing.h"
 
 #include "base/command_line.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/synchronization/lock.h"
 #include "base/thread_task_runner_handle.h"
 #include "cc/animation/animation_host.h"
 #include "cc/animation/animation_timeline.h"
 #include "cc/base/switches.h"
 #include "cc/blink/web_compositor_animation_timeline_impl.h"
 #include "cc/blink/web_layer_impl.h"
 #include "cc/input/input_handler.h"
 #include "cc/layers/layer.h"
 #include "cc/scheduler/begin_frame_source.h"
 #include "cc/trees/layer_tree_host.h"
 #include "content/test/test_blink_web_unit_test_support.h"
 #include "third_party/WebKit/public/platform/Platform.h"
 #include "third_party/WebKit/public/platform/WebLayer.h"
 #include "third_party/WebKit/public/platform/WebLayerTreeView.h"
 #include "third_party/WebKit/public/platform/WebSize.h"
+#include "third_party/WebKit/public/web/WebRuntimeFeatures.h"
 
 using blink::WebColor;
 using blink::WebRect;
 using blink::WebSize;
 
 namespace content {
 
 WebLayerTreeViewImplForTesting::WebLayerTreeViewImplForTesting() {}
 
 WebLayerTreeViewImplForTesting::~WebLayerTreeViewImplForTesting() {}
 
 void WebLayerTreeViewImplForTesting::Initialize() {
   cc::LayerTreeSettings settings;
 
   // For web contents, layer transforms should scale up the contents of layers
   // to keep content always crisp when possible.
   settings.layer_transforms_should_scale_layer_contents = true;
 
   // Accelerated animations are enabled for unit tests.
   settings.accelerated_animation_enabled = true;
+  // External cc::AnimationHost is enabled for unit tests.
+  settings.use_compositor_animation_timelines = true;
+
   cc::LayerTreeHost::InitParams params;
   params.client = this;
   params.settings = &settings;
   params.main_task_runner = base::ThreadTaskRunnerHandle::Get();
   params.task_graph_runner = &task_graph_runner_;
   layer_tree_host_ = cc::LayerTreeHost::CreateSingleThreaded(this, &params);
   DCHECK(layer_tree_host_);
 }
 
 void WebLayerTreeViewImplForTesting::setRootLayer(
@@ skipping 135 matching lines @@
 }
 
 void WebLayerTreeViewImplForTesting::registerSelection(
     const blink::WebSelection& selection) {
 }
 
 void WebLayerTreeViewImplForTesting::clearSelection() {
 }
 
 }  // namespace content