cc: Remove ScopedPtrDeque.

cc/base/container_util.h

+// Copyright 2015 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_BASE_CONTAINER_UTIL_H_
+#define CC_BASE_CONTAINER_UTIL_H_
+
+#include "base/memory/scoped_ptr.h"
+
+namespace cc {
+
+// Removes the front element from the container and returns it. Note that this
+// currently only works with types that implement Pass().
+// TODO(vmpstr): Use std::move instead of Pass when allowed.
+template <typename Container>
+typename Container::value_type PopFront(Container* container) {
+  typename Container::value_type element = container->front().Pass();
+  container->pop_front();
+  return element;
+}
+
+// Removes the back element from the container and returns it. Note that this
+// currently only works with types that implement Pass().
+// TODO(vmpstr): Use std::move instead of Pass when allowed.
+template <typename Container>
+typename Container::value_type PopBack(Container* container) {
+  typename Container::value_type element = container->back().Pass();
+  container->pop_back();
+  return element;
+}
+
+}  // namespace cc
+
+#endif  // CC_BASE_CONTAINER_UTIL_H_