cc : Add DCHECKs to ensure we have valid proprety tree indices at commit

cc/layers/picture_layer_unittest.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/layers/picture_layer.h"
 
 #include <stddef.h>
 
 #include "base/memory/ptr_util.h"
 #include "base/threading/thread_task_runner_handle.h"
@@ skipping 168 matching lines @@
   layer->SetIsDrawable(true);
   layer->SavePaintProperties();
   layer->Update();
 
   EXPECT_EQ(0, host->SourceFrameNumber());
   host->CommitComplete();
   EXPECT_EQ(1, host->SourceFrameNumber());
 
   layer->SavePaintProperties();
   layer->Update();
+  host->BuildPropertyTreesForTesting();
 
   FakeImplTaskRunnerProvider impl_task_runner_provider;
 
   std::unique_ptr<CompositorFrameSink> compositor_frame_sink(
       FakeCompositorFrameSink::Create3d());
   LayerTreeSettings layer_tree_settings = LayerTreeSettings();
   layer_tree_settings.image_decode_tasks_enabled = true;
   FakeLayerTreeHostImpl host_impl(
       layer_tree_settings, &impl_task_runner_provider, &task_graph_runner);
   host_impl.SetVisible(true);
   EXPECT_TRUE(host_impl.InitializeRenderer(compositor_frame_sink.get()));
 
   host_impl.CreatePendingTree();
   host_impl.pending_tree()->SetRootLayerForTesting(
       FakePictureLayerImpl::Create(host_impl.pending_tree(), 1));
-  host_impl.pending_tree()->BuildLayerListForTesting();
+  host_impl.pending_tree()->BuildLayerListAndPropertyTreesForTesting();
 
   FakePictureLayerImpl* layer_impl = static_cast<FakePictureLayerImpl*>(
       host_impl.pending_tree()->root_layer_for_testing());
 
   layer->PushPropertiesTo(layer_impl);
 
   host->CommitComplete();
   EXPECT_EQ(2, host->SourceFrameNumber());
 
   host_impl.ActivateSyncTree();
@@ skipping 140 matching lines @@
   host2->Composite(base::TimeTicks::Now());
   EXPECT_EQ(3, layer->update_count());
   EXPECT_EQ(1, host2->SourceFrameNumber());
 
   animation_host->SetMutatorHostClient(nullptr);
   animation_host2->SetMutatorHostClient(nullptr);
 }
 
 }  // namespace
 }  // namespace cc