cc: Reland Move data to LayerTree from LayerTreeHost.

cc/test/fake_layer_tree_host.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 "cc/test/fake_layer_tree_host.h"
 
 #include "base/memory/ptr_util.h"
 #include "cc/animation/animation_host.h"
 #include "cc/layers/layer.h"
 #include "cc/test/fake_image_serialization_processor.h"
 #include "cc/test/test_task_graph_runner.h"
+#include "cc/trees/layer_tree.h"
 
 namespace cc {
+
+namespace {
+
+class FakeLayerTree : public LayerTree {
+ public:
+  FakeLayerTree(std::unique_ptr<AnimationHost> animation_host,

[vmpstr, 2016/08/17 20:28:15]

minor nit: this could be templatized with a parameter pack so that you don't
have to update it if layer tree ctor changes
 

+                LayerTreeHost* layer_tree_host)
+      : LayerTree(std::move(animation_host), layer_tree_host) {}
+
+  void SetNeedsFullTreeSync() override {}
+};
+
+}  // namespace
+
 FakeLayerTreeHost::FakeLayerTreeHost(FakeLayerTreeHostClient* client,
                                      LayerTreeHost::InitParams* params,
                                      CompositorMode mode)
-    : LayerTreeHost(params, mode),
+    : LayerTreeHost(
+          params,
+          mode,
+          base::MakeUnique<FakeLayerTree>(std::move(params->animation_host),
+                                          this)),
       client_(client),
       host_impl_(*params->settings,
                  &task_runner_provider_,
                  &manager_,
                  params->task_graph_runner),
       needs_commit_(false),
       renderer_capabilities_set(false) {
   scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner =
       mode == CompositorMode::THREADED ? base::ThreadTaskRunnerHandle::Get()
                                        : nullptr;
@@ skipping 61 matching lines @@
 
 LayerImpl* FakeLayerTreeHost::CommitAndCreateLayerImplTree() {
   TreeSynchronizer::SynchronizeTrees(root_layer(), active_tree());
   active_tree()->SetPropertyTrees(property_trees());
   TreeSynchronizer::PushLayerProperties(root_layer()->GetLayerTree(),
                                         active_tree());
   animation_host()->PushPropertiesTo(host_impl_.animation_host());
 
   active_tree()->UpdatePropertyTreeScrollOffset(property_trees());
 
-  if (page_scale_layer() && inner_viewport_scroll_layer()) {
+  if (layer_tree_->page_scale_layer() &&
+      layer_tree_->inner_viewport_scroll_layer()) {
     active_tree()->SetViewportLayersFromIds(
-        overscroll_elasticity_layer() ? overscroll_elasticity_layer()->id()
-                                      : Layer::INVALID_ID,
-        page_scale_layer()->id(), inner_viewport_scroll_layer()->id(),
-        outer_viewport_scroll_layer() ? outer_viewport_scroll_layer()->id()
-                                      : Layer::INVALID_ID);
+        layer_tree_->overscroll_elasticity_layer()
+            ? layer_tree_->overscroll_elasticity_layer()->id()
+            : Layer::INVALID_ID,
+        layer_tree_->page_scale_layer()->id(),
+        layer_tree_->inner_viewport_scroll_layer()->id(),
+        layer_tree_->outer_viewport_scroll_layer()
+            ? layer_tree_->outer_viewport_scroll_layer()->id()
+            : Layer::INVALID_ID);
   }
 
   active_tree()->UpdatePropertyTreesForBoundsDelta();
   return active_tree()->root_layer_for_testing();
 }
 
 LayerImpl* FakeLayerTreeHost::CommitAndCreatePendingTree() {
   TreeSynchronizer::SynchronizeTrees(root_layer(), pending_tree());
   pending_tree()->SetPropertyTrees(property_trees());
   TreeSynchronizer::PushLayerProperties(root_layer()->GetLayerTree(),
                                         pending_tree());
   animation_host()->PushPropertiesTo(host_impl_.animation_host());
 
   pending_tree()->UpdatePropertyTreeScrollOffset(property_trees());
   return pending_tree()->root_layer_for_testing();
 }
 
 }  // namespace cc