cc: Refactor TileTaskWorkerPool.

cc/raster/bitmap_tile_task_worker_pool.cc

Index: cc/raster/bitmap_tile_task_worker_pool.cc
diff --git a/cc/raster/bitmap_tile_task_worker_pool.cc b/cc/raster/bitmap_tile_task_worker_pool.cc
index c08bdcd65b2d3d13bb2fe576e2aa490a7357e8c3..dc8565415c7d5a82f8a733f130a1822d55ae5301 100644
--- a/cc/raster/bitmap_tile_task_worker_pool.cc
+++ b/cc/raster/bitmap_tile_task_worker_pool.cc
@@ -68,55 +68,19 @@ class RasterBufferImpl : public RasterBuffer {
 
 // static
 std::unique_ptr<TileTaskWorkerPool> BitmapTileTaskWorkerPool::Create(
-    base::SequencedTaskRunner* task_runner,
-    TaskGraphRunner* task_graph_runner,
     ResourceProvider* resource_provider) {
-  return base::WrapUnique<TileTaskWorkerPool>(new BitmapTileTaskWorkerPool(
-      task_runner, task_graph_runner, resource_provider));
+  return base::WrapUnique<TileTaskWorkerPool>(
+      new BitmapTileTaskWorkerPool(resource_provider));
 }
 
 BitmapTileTaskWorkerPool::BitmapTileTaskWorkerPool(
-    base::SequencedTaskRunner* task_runner,
-    TaskGraphRunner* task_graph_runner,
     ResourceProvider* resource_provider)
-    : task_runner_(task_runner),
-      task_graph_runner_(task_graph_runner),
-      namespace_token_(task_graph_runner->GetNamespaceToken()),
-      resource_provider_(resource_provider) {}
+    : resource_provider_(resource_provider) {}
 
 BitmapTileTaskWorkerPool::~BitmapTileTaskWorkerPool() {
 }
 
-void BitmapTileTaskWorkerPool::Shutdown() {
-  TRACE_EVENT0("cc", "BitmapTileTaskWorkerPool::Shutdown");
-
-  TaskGraph empty;
-  task_graph_runner_->ScheduleTasks(namespace_token_, &empty);
-  task_graph_runner_->WaitForTasksToFinishRunning(namespace_token_);
-}
-
-void BitmapTileTaskWorkerPool::ScheduleTasks(TaskGraph* graph) {
-  TRACE_EVENT0("cc", "BitmapTileTaskWorkerPool::ScheduleTasks");
-
-  ScheduleTasksOnOriginThread(this, graph);
-  task_graph_runner_->ScheduleTasks(namespace_token_, graph);
-}
-
-void BitmapTileTaskWorkerPool::CheckForCompletedTasks() {
-  TRACE_EVENT0("cc", "BitmapTileTaskWorkerPool::CheckForCompletedTasks");
-
-  task_graph_runner_->CollectCompletedTasks(namespace_token_,
-                                            &completed_tasks_);
-  for (Task::Vector::const_iterator it = completed_tasks_.begin();
-       it != completed_tasks_.end(); ++it) {
-    TileTask* task = static_cast<TileTask*>(it->get());
-
-    task->WillComplete();
-    task->CompleteOnOriginThread(this);
-    task->DidComplete();
-  }
-  completed_tasks_.clear();
-}
+void BitmapTileTaskWorkerPool::BarrierToSyncResources() {}
 
 ResourceFormat BitmapTileTaskWorkerPool::GetResourceFormat(
     bool must_support_alpha) const {