TaskGraphRunner refactor

cc/trees/layer_tree_host_impl.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/trees/layer_tree_host_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <set>
@@ skipping 40 matching lines @@
 #include "cc/output/software_renderer.h"
 #include "cc/output/texture_mailbox_deleter.h"
 #include "cc/quads/render_pass_draw_quad.h"
 #include "cc/quads/shared_quad_state.h"
 #include "cc/quads/solid_color_draw_quad.h"
 #include "cc/quads/texture_draw_quad.h"
 #include "cc/raster/bitmap_tile_task_worker_pool.h"
 #include "cc/raster/gpu_rasterizer.h"
 #include "cc/raster/gpu_tile_task_worker_pool.h"
 #include "cc/raster/one_copy_tile_task_worker_pool.h"
+#include "cc/raster/synchronous_task_graph_runner.h"
 #include "cc/raster/tile_task_worker_pool.h"
 #include "cc/raster/zero_copy_tile_task_worker_pool.h"
 #include "cc/resources/memory_history.h"
 #include "cc/resources/resource_pool.h"
 #include "cc/resources/ui_resource_bitmap.h"
 #include "cc/scheduler/delay_based_time_source.h"
 #include "cc/tiles/eviction_tile_priority_queue.h"
 #include "cc/tiles/picture_layer_tiling.h"
 #include "cc/tiles/raster_tile_priority_queue.h"
 #include "cc/trees/damage_tracker.h"
@@ skipping 2082 matching lines @@
   DCHECK(GetTaskRunner());
   // TODO(vmpstr): Make this a DCHECK (or remove) when crbug.com/419086 is
   // resolved.
   CHECK(resource_provider_);
 
   // Pass the single-threaded synchronous task graph runner to the worker pool
   // if we're in synchronous single-threaded mode.
   TaskGraphRunner* task_graph_runner = task_graph_runner_;
   if (is_synchronous_single_threaded_) {
     DCHECK(!single_thread_synchronous_task_graph_runner_);
-    single_thread_synchronous_task_graph_runner_.reset(new TaskGraphRunner);
+    single_thread_synchronous_task_graph_runner_.reset(
+        new SynchronousTaskGraphRunner);
     task_graph_runner = single_thread_synchronous_task_graph_runner_.get();
   }
 
   ContextProvider* context_provider = output_surface_->context_provider();
   if (!context_provider) {
     *resource_pool =
         ResourcePool::Create(resource_provider_.get(), GetTaskRunner());
 
     *tile_task_worker_pool = BitmapTileTaskWorkerPool::Create(
         GetTaskRunner(), task_graph_runner, resource_provider_.get());
@@ skipping 1563 matching lines @@
   return task_runner_provider_->HasImplThread();
 }
 
 bool LayerTreeHostImpl::CommitToActiveTree() const {
   // In single threaded mode we skip the pending tree and commit directly to the
   // active tree.
   return !task_runner_provider_->HasImplThread();
 }
 
 }  // namespace cc