convert //gpu to std::unique_ptr

content/common/gpu/media/video_decode_accelerator_unittest.cc

 // Copyright (c) 2012 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.
 //
 // The bulk of this file is support code; sorry about that.  Here's an overview
 // to hopefully help readers of this code:
 // - RenderingHelper is charged with interacting with X11/{EGL/GLES2,GLX/GL} or
 //   Win/EGL.
 // - ClientState is an enum for the state of the decode client used by the test.
 // - ClientStateNotification is a barrier abstraction that allows the test code
 //   to be written sequentially and wait for the decode client to see certain
 //   state transitions.
 // - GLRenderingVDAClient is a VideoDecodeAccelerator::Client implementation
 // - Finally actual TEST cases are at the bottom of this file, using the above
 //   infrastructure.
 
 #include <fcntl.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <sys/stat.h>
 #include <sys/types.h>
+
 #include <algorithm>
 #include <deque>
 #include <map>
+#include <memory>
 #include <utility>
 
 #include "base/at_exit.h"
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/command_line.h"
 #include "base/files/file.h"
 #include "base/files/file_util.h"
 #include "base/format_macros.h"
 #include "base/macros.h"
@@ skipping 1544 matching lines @@
   content::VaapiWrapper::PreSandboxInitialization();
 #endif
 
   content::g_env =
       reinterpret_cast<content::VideoDecodeAcceleratorTestEnvironment*>(
           testing::AddGlobalTestEnvironment(
               new content::VideoDecodeAcceleratorTestEnvironment()));
 
   return RUN_ALL_TESTS();
 }