cc: Refactor TileTaskWorkerPool.

cc/raster/zero_copy_tile_task_worker_pool.cc

Index: cc/raster/zero_copy_tile_task_worker_pool.cc
diff --git a/cc/raster/zero_copy_tile_task_worker_pool.cc b/cc/raster/zero_copy_tile_task_worker_pool.cc
index e423450baf3e1ddc8cb21211a899b0263429837d..a13699383a938a2033782f8c29f43a1fa80650ba 100644
--- a/cc/raster/zero_copy_tile_task_worker_pool.cc
+++ b/cc/raster/zero_copy_tile_task_worker_pool.cc
@@ -66,59 +66,22 @@ class RasterBufferImpl : public RasterBuffer {
 
 // static
 std::unique_ptr<TileTaskWorkerPool> ZeroCopyTileTaskWorkerPool::Create(
-    base::SequencedTaskRunner* task_runner,
-    TaskGraphRunner* task_graph_runner,
     ResourceProvider* resource_provider,
     ResourceFormat preferred_tile_format) {
   return base::WrapUnique<TileTaskWorkerPool>(
-      new ZeroCopyTileTaskWorkerPool(task_runner, task_graph_runner,
-                                     resource_provider, preferred_tile_format));
+      new ZeroCopyTileTaskWorkerPool(resource_provider, preferred_tile_format));
 }
 
 ZeroCopyTileTaskWorkerPool::ZeroCopyTileTaskWorkerPool(
-    base::SequencedTaskRunner* task_runner,
-    TaskGraphRunner* task_graph_runner,
     ResourceProvider* resource_provider,
     ResourceFormat preferred_tile_format)
-    : task_runner_(task_runner),
-      task_graph_runner_(task_graph_runner),
-      namespace_token_(task_graph_runner->GetNamespaceToken()),
-      resource_provider_(resource_provider),
+    : resource_provider_(resource_provider),
       preferred_tile_format_(preferred_tile_format) {}
 
 ZeroCopyTileTaskWorkerPool::~ZeroCopyTileTaskWorkerPool() {
 }
 
-void ZeroCopyTileTaskWorkerPool::Shutdown() {
-  TRACE_EVENT0("cc", "ZeroCopyTileTaskWorkerPool::Shutdown");
-
-  TaskGraph empty;
-  task_graph_runner_->ScheduleTasks(namespace_token_, &empty);
-  task_graph_runner_->WaitForTasksToFinishRunning(namespace_token_);
-}
-
-void ZeroCopyTileTaskWorkerPool::ScheduleTasks(TaskGraph* graph) {
-  TRACE_EVENT0("cc", "ZeroCopyTileTaskWorkerPool::ScheduleTasks");
-
-  ScheduleTasksOnOriginThread(this, graph);
-  task_graph_runner_->ScheduleTasks(namespace_token_, graph);
-}
-
-void ZeroCopyTileTaskWorkerPool::CheckForCompletedTasks() {
-  TRACE_EVENT0("cc", "ZeroCopyTileTaskWorkerPool::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 ZeroCopyTileTaskWorkerPool::BarrierToSyncResources() {}
 
 ResourceFormat ZeroCopyTileTaskWorkerPool::GetResourceFormat(
     bool must_support_alpha) const {