cc: Optimize decode scheduling for checker-images.

cc/test/test_layer_tree_host_base.cc

 // Copyright 2016 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/test_layer_tree_host_base.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "cc/test/fake_compositor_frame_sink.h"
 #include "cc/test/fake_raster_source.h"
@@ skipping 141 matching lines @@
   CHECK(host_impl()->recycle_tree());
   old_pending_layer_ = pending_layer_;
   pending_layer_ = nullptr;
   active_layer_ = static_cast<FakePictureLayerImpl*>(
       host_impl()->active_tree()->LayerById(id_));
 
   bool update_lcd_text = false;
   host_impl()->active_tree()->UpdateDrawProperties(update_lcd_text);
 }
 
+void TestLayerTreeHostBase::PerformImplSideInvalidation() {
+  DCHECK(host_impl()->active_tree());
+  DCHECK(!host_impl()->pending_tree());
+  DCHECK(host_impl()->recycle_tree());
+
+  host_impl()->CreatePendingTree();
+  host_impl()->sync_tree()->InvalidateRegionForImages(
+      host_impl()->tile_manager()->TakeImagesToInvalidateOnSyncTree());
+  pending_layer_ = old_pending_layer_;
+  old_pending_layer_ = nullptr;
+}
+
 void TestLayerTreeHostBase::RebuildPropertyTreesOnPendingTree() {
   host_impl()->pending_tree()->property_trees()->needs_rebuild = true;
   host_impl()->pending_tree()->BuildLayerListAndPropertyTreesForTesting();
 }
 
 void TestLayerTreeHostBase::SetInitialTreePriority() {
   GlobalStateThatImpactsTilePriority state;
 
   state.soft_memory_limit_in_bytes = 100 * 1000 * 1000;
   state.num_resources_limit = 10000;
   state.hard_memory_limit_in_bytes = state.soft_memory_limit_in_bytes * 2;
   state.memory_limit_policy = ALLOW_ANYTHING;
   state.tree_priority = SAME_PRIORITY_FOR_BOTH_TREES;
 
   host_impl_->resource_pool()->SetResourceUsageLimits(
       state.soft_memory_limit_in_bytes, state.num_resources_limit);
   host_impl_->tile_manager()->SetGlobalStateForTesting(state);
 }
 
 }  // namespace cc