Remove parts of //cc we aren't using

cc/resources/ui_resource_request.cc

-// 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/resources/ui_resource_request.h"
-
-namespace cc {
-
-UIResourceRequest::UIResourceRequest(UIResourceRequestType type,
-                                     UIResourceId id)
-    : type_(type), id_(id) {}
-
-UIResourceRequest::UIResourceRequest(UIResourceRequestType type,
-                                     UIResourceId id,
-                                     const UIResourceBitmap& bitmap)
-    : type_(type), id_(id), bitmap_(new UIResourceBitmap(bitmap)) {}
-
-UIResourceRequest::UIResourceRequest(const UIResourceRequest& request) {
-  (*this) = request;
-}
-
-UIResourceRequest& UIResourceRequest::operator=(
-    const UIResourceRequest& request) {
-  type_ = request.type_;
-  id_ = request.id_;
-  if (request.bitmap_) {
-    bitmap_ = make_scoped_ptr(new UIResourceBitmap(*request.bitmap_.get()));
-  } else {
-    bitmap_ = nullptr;
-  }
-
-  return *this;
-}
-
-UIResourceRequest::~UIResourceRequest() {}
-
-}  // namespace cc