cc: Merge TileTaskRunner to TileTaskWorkerPool.

cc/raster/tile_task_runner.cc

-// 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.
-
-#include "cc/raster/tile_task_runner.h"
-#include "cc/resources/platform_color.h"
-
-namespace cc {
-
-TileTask::TileTask(bool supports_concurrent_execution)
-    : supports_concurrent_execution_(supports_concurrent_execution),
-      did_schedule_(false),
-      did_complete_(false) {}
-
-TileTask::TileTask(bool supports_concurrent_execution,
-                   TileTask::Vector* dependencies)
-    : supports_concurrent_execution_(supports_concurrent_execution),
-      dependencies_(std::move(*dependencies)),
-      did_schedule_(false),
-      did_complete_(false) {}
-
-TileTask::~TileTask() {
-  DCHECK(!did_schedule_);
-  DCHECK(!did_run_ || did_complete_);
-}
-
-void TileTask::WillSchedule() {
-  DCHECK(!did_schedule_);
-}
-
-void TileTask::DidSchedule() {
-  did_schedule_ = true;
-  did_complete_ = false;
-}
-
-bool TileTask::HasBeenScheduled() const {
-  return did_schedule_;
-}
-
-void TileTask::WillComplete() {
-  DCHECK(!did_complete_);
-}
-
-void TileTask::DidComplete() {
-  DCHECK(did_schedule_);
-  DCHECK(!did_complete_);
-  did_schedule_ = false;
-  did_complete_ = true;
-}
-
-bool TileTask::HasCompleted() const {
-  return did_complete_;
-}
-
-bool TileTaskRunner::ResourceFormatRequiresSwizzle(ResourceFormat format) {
-  switch (format) {
-    case RGBA_8888:
-    case BGRA_8888:
-      // Initialize resource using the preferred PlatformColor component
-      // order and swizzle in the shader instead of in software.
-      return !PlatformColor::SameComponentOrder(format);
-    case RGBA_4444:
-    case ETC1:
-    case ALPHA_8:
-    case LUMINANCE_8:
-    case RGB_565:
-    case RED_8:
-    case LUMINANCE_F16:
-      return false;
-  }
-  NOTREACHED();
-  return false;
-}
-
-}  // namespace cc