Remove parts of //cc we aren't using

cc/resources/tile_task_runner.cc

Index: cc/resources/tile_task_runner.cc
diff --git a/cc/resources/tile_task_runner.cc b/cc/resources/tile_task_runner.cc
deleted file mode 100644
index 8775d322ce812f9347554509a4cf286b59b114d4..0000000000000000000000000000000000000000
--- a/cc/resources/tile_task_runner.cc
+++ /dev/null
@@ -1,101 +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.
-
-#include "cc/resources/tile_task_runner.h"
-
-#include <algorithm>
-
-namespace cc {
-
-TileTask::TileTask() : did_schedule_(false), did_complete_(false) {
-}
-
-TileTask::~TileTask() {
-  // Debugging CHECKs to help track down a use-after-free.
-  CHECK(!did_schedule_);
-  CHECK(!did_run_ || did_complete_);
-}
-
-ImageDecodeTask* TileTask::AsImageDecodeTask() {
-  return NULL;
-}
-
-RasterTask* TileTask::AsRasterTask() {
-  return NULL;
-}
-
-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_;
-}
-
-ImageDecodeTask::ImageDecodeTask() {
-}
-
-ImageDecodeTask::~ImageDecodeTask() {
-}
-
-ImageDecodeTask* ImageDecodeTask::AsImageDecodeTask() {
-  return this;
-}
-
-RasterTask::RasterTask(const Resource* resource,
-                       ImageDecodeTask::Vector* dependencies)
-    : resource_(resource) {
-  dependencies_.swap(*dependencies);
-}
-
-RasterTask::~RasterTask() {
-}
-
-RasterTask* RasterTask::AsRasterTask() {
-  return this;
-}
-
-TileTaskQueue::Item::Item(RasterTask* task, const TaskSetCollection& task_sets)
-    : task(task), task_sets(task_sets) {
-  DCHECK(task_sets.any());
-}
-
-TileTaskQueue::Item::~Item() {
-}
-
-TileTaskQueue::TileTaskQueue() {
-}
-
-TileTaskQueue::~TileTaskQueue() {
-}
-
-void TileTaskQueue::Swap(TileTaskQueue* other) {
-  items.swap(other->items);
-}
-
-void TileTaskQueue::Reset() {
-  items.clear();
-}
-
-}  // namespace cc