cc: Merge TileTaskRunner to TileTaskWorkerPool.

cc/raster/tile_task_runner.h

Index: cc/raster/tile_task_runner.h
diff --git a/cc/raster/tile_task_runner.h b/cc/raster/tile_task_runner.h
deleted file mode 100644
index 3bda3ad8709bffea25830d01d672565181952724..0000000000000000000000000000000000000000
--- a/cc/raster/tile_task_runner.h
+++ /dev/null
@@ -1,93 +0,0 @@
-// Copyright 2014 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.
-
-#ifndef CC_RASTER_TILE_TASK_RUNNER_H_
-#define CC_RASTER_TILE_TASK_RUNNER_H_
-
-#include <stdint.h>
-
-#include <vector>
-
-#include "base/callback.h"
-#include "cc/raster/raster_buffer.h"
-#include "cc/raster/task.h"
-#include "cc/resources/resource_format.h"
-
-namespace cc {
-
-class CC_EXPORT TileTask : public Task {
- public:
-  typedef std::vector<scoped_refptr<TileTask>> Vector;
-
-  const TileTask::Vector& dependencies() const { return dependencies_; }
-
-  // Indicates whether this TileTask can be run at the same time as other tasks
-  // in the task graph. If false, this task will be scheduled with
-  // TASK_CATEGORY_NONCONCURRENT_FOREGROUND. The base implementation always
-  // returns true.
-  bool SupportsConcurrentExecution() const {
-    return supports_concurrent_execution_;
-  }
-
-  virtual void ScheduleOnOriginThread(RasterBufferProvider* provider) = 0;
-  virtual void CompleteOnOriginThread(RasterBufferProvider* provider) = 0;
-
-  void WillSchedule();
-  void DidSchedule();
-  bool HasBeenScheduled() const;
-
-  void WillComplete();
-  void DidComplete();
-  bool HasCompleted() const;
-
- protected:
-  explicit TileTask(bool supports_concurrent_execution);
-  TileTask(bool supports_concurrent_execution, TileTask::Vector* dependencies);
-  ~TileTask() override;
-
-  const bool supports_concurrent_execution_;
-  TileTask::Vector dependencies_;
-  bool did_schedule_;
-  bool did_complete_;
-};
-
-// This interface can be used to schedule and run tile tasks.
-// The client can call CheckForCompletedTasks() at any time to dispatch
-// pending completion callbacks for all tasks that have finished running.
-class CC_EXPORT TileTaskRunner {
- public:
-  // Tells the worker pool to shutdown after canceling all previously scheduled
-  // tasks. Reply callbacks are still guaranteed to run when
-  // CheckForCompletedTasks() is called.
-  virtual void Shutdown() = 0;
-
-  // Schedule running of tile tasks in |graph| and all dependencies.
-  // Previously scheduled tasks that are not in |graph| will be canceled unless
-  // already running. Once scheduled, reply callbacks are guaranteed to run for
-  // all tasks even if they later get canceled by another call to
-  // ScheduleTasks().
-  virtual void ScheduleTasks(TaskGraph* graph) = 0;
-
-  // Check for completed tasks and dispatch reply callbacks.
-  virtual void CheckForCompletedTasks() = 0;
-
-  // Returns the format to use for the tiles.
-  virtual ResourceFormat GetResourceFormat(bool must_support_alpha) const = 0;
-
-  // Determine if the resource requires swizzling.
-  virtual bool GetResourceRequiresSwizzle(bool must_support_alpha) const = 0;
-
-  // Downcasting routine for RasterBufferProvider interface.
-  virtual RasterBufferProvider* AsRasterBufferProvider() = 0;
-
- protected:
-  // Check if resource format matches output format.
-  static bool ResourceFormatRequiresSwizzle(ResourceFormat format);
-
-  virtual ~TileTaskRunner() {}
-};
-
-}  // namespace cc
-
-#endif  // CC_RASTER_TILE_TASK_RUNNER_H_