Remove parts of //cc we aren't using

cc/layers/delegated_frame_resource_collection.cc

Index: cc/layers/delegated_frame_resource_collection.cc
diff --git a/cc/layers/delegated_frame_resource_collection.cc b/cc/layers/delegated_frame_resource_collection.cc
deleted file mode 100644
index a1bc759a0330eb531601eb19ddab2a0d09c72fd7..0000000000000000000000000000000000000000
--- a/cc/layers/delegated_frame_resource_collection.cc
+++ /dev/null
@@ -1,129 +0,0 @@
-// Copyright 2013 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/layers/delegated_frame_resource_collection.h"
-
-#include "base/bind.h"
-#include "cc/trees/blocking_task_runner.h"
-
-namespace cc {
-
-DelegatedFrameResourceCollection::DelegatedFrameResourceCollection()
-    : client_(nullptr), lost_all_resources_(false), weak_ptr_factory_(this) {
-  DCHECK(main_thread_checker_.CalledOnValidThread());
-}
-
-DelegatedFrameResourceCollection::~DelegatedFrameResourceCollection() {
-  DCHECK(main_thread_checker_.CalledOnValidThread());
-}
-
-void DelegatedFrameResourceCollection::SetClient(
-    DelegatedFrameResourceCollectionClient* client) {
-  client_ = client;
-}
-
-void DelegatedFrameResourceCollection::TakeUnusedResourcesForChildCompositor(
-    ReturnedResourceArray* array) {
-  DCHECK(main_thread_checker_.CalledOnValidThread());
-  DCHECK(array->empty());
-  array->swap(returned_resources_for_child_compositor_);
-}
-
-bool DelegatedFrameResourceCollection::LoseAllResources() {
-  DCHECK(main_thread_checker_.CalledOnValidThread());
-  DCHECK(!lost_all_resources_);
-  lost_all_resources_ = true;
-
-  if (resource_id_ref_count_map_.empty())
-    return false;
-
-  ReturnedResourceArray to_return;
-
-  for (ResourceIdRefCountMap::iterator it = resource_id_ref_count_map_.begin();
-       it != resource_id_ref_count_map_.end();
-       ++it) {
-    DCHECK_GE(it->second.refs_to_wait_for, 1);
-
-    ReturnedResource returned;
-    returned.id = it->first;
-    returned.count = it->second.refs_to_return;
-    returned.lost = true;
-    to_return.push_back(returned);
-  }
-
-  returned_resources_for_child_compositor_.insert(
-      returned_resources_for_child_compositor_.end(),
-      to_return.begin(),
-      to_return.end());
-  if (client_)
-    client_->UnusedResourcesAreAvailable();
-  return true;
-}
-
-void DelegatedFrameResourceCollection::ReceivedResources(
-    const TransferableResourceArray& resources) {
-  DCHECK(main_thread_checker_.CalledOnValidThread());
-  DCHECK(!lost_all_resources_);
-
-  for (size_t i = 0; i < resources.size(); ++i)
-    resource_id_ref_count_map_[resources[i].id].refs_to_return++;
-}
-
-void DelegatedFrameResourceCollection::UnrefResources(
-    const ReturnedResourceArray& returned) {
-  DCHECK(main_thread_checker_.CalledOnValidThread());
-
-  if (lost_all_resources_)
-    return;
-
-  ReturnedResourceArray to_return;
-
-  for (size_t i = 0; i < returned.size(); ++i) {
-    ResourceIdRefCountMap::iterator it =
-        resource_id_ref_count_map_.find(returned[i].id);
-    DCHECK(it != resource_id_ref_count_map_.end());
-    DCHECK_GE(it->second.refs_to_wait_for, returned[i].count);
-    it->second.refs_to_wait_for -= returned[i].count;
-    if (it->second.refs_to_wait_for == 0) {
-      to_return.push_back(returned[i]);
-      to_return.back().count = it->second.refs_to_return;
-      resource_id_ref_count_map_.erase(it);
-    }
-  }
-
-  if (to_return.empty())
-    return;
-
-  returned_resources_for_child_compositor_.insert(
-      returned_resources_for_child_compositor_.end(),
-      to_return.begin(),
-      to_return.end());
-  if (client_)
-    client_->UnusedResourcesAreAvailable();
-}
-
-void DelegatedFrameResourceCollection::RefResources(
-    const TransferableResourceArray& resources) {
-  DCHECK(main_thread_checker_.CalledOnValidThread());
-  for (size_t i = 0; i < resources.size(); ++i)
-    resource_id_ref_count_map_[resources[i].id].refs_to_wait_for++;
-}
-
-static void UnrefResourcesOnImplThread(
-    base::WeakPtr<DelegatedFrameResourceCollection> self,
-    const ReturnedResourceArray& returned,
-    BlockingTaskRunner* main_thread_task_runner) {
-  main_thread_task_runner->PostTask(
-      FROM_HERE,
-      base::Bind(
-          &DelegatedFrameResourceCollection::UnrefResources, self, returned));
-}
-
-ReturnCallback
-DelegatedFrameResourceCollection::GetReturnResourcesCallbackForImplThread() {
-  return base::Bind(&UnrefResourcesOnImplThread,
-                    weak_ptr_factory_.GetWeakPtr());
-}
-
-}  // namespace cc