convert //gpu to std::unique_ptr

gpu/ipc/service/child_window_surface_win.cc

 // 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.
 
 #include "gpu/ipc/service/child_window_surface_win.h"
 
+#include <memory>
+
 #include "base/compiler_specific.h"
 #include "base/win/scoped_hdc.h"
 #include "base/win/wrapped_window_proc.h"
 #include "gpu/ipc/common/gpu_messages.h"
 #include "gpu/ipc/service/gpu_channel_manager.h"
 #include "gpu/ipc/service/gpu_channel_manager_delegate.h"
 #include "ui/base/win/hidden_window.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/win/hwnd_util.h"
 #include "ui/gl/egl_util.h"
@@ skipping 136 matching lines @@
     }
     size_ = size;
     if (has_alpha == alpha_) {
       // A 0-size PostSubBuffer doesn't swap but forces the swap chain to resize
       // to match the window.
       PostSubBuffer(0, 0, 0, 0);
     } else {
       alpha_ = has_alpha;
       config_ = nullptr;
 
-      scoped_ptr<ui::ScopedMakeCurrent> scoped_make_current;
+      std::unique_ptr<ui::ScopedMakeCurrent> scoped_make_current;
       gfx::GLContext* current_context = gfx::GLContext::GetCurrent();
       bool was_current = current_context && current_context->IsCurrent(this);
       if (was_current) {
         scoped_make_current.reset(
             new ui::ScopedMakeCurrent(current_context, this));
         current_context->ReleaseCurrent(this);
       }
 
       Destroy();
 
@@ skipping 45 matching lines @@
     rect_to_clear_ = gfx::Rect();
   }
 }
 
 ChildWindowSurfaceWin::~ChildWindowSurfaceWin() {
   gfx::SetWindowUserData(window_, nullptr);
   DestroyWindow(window_);
 }
 
 }  // namespace gpu