Replace scoped_ptr with std::unique_ptr in //ui

ui/ozone/platform/cast/surface_ozone_egl_cast.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 "ui/ozone/platform/cast/surface_ozone_egl_cast.h"
 
 #include "third_party/khronos/EGL/egl.h"
 #include "ui/gfx/vsync_provider.h"
 #include "ui/ozone/common/egl_util.h"
 #include "ui/ozone/platform/cast/surface_factory_cast.h"
@@ skipping 16 matching lines @@
 void SurfaceOzoneEglCast::OnSwapBuffersAsync(
     const SwapCompletionCallback& callback) {
   parent_->OnSwapBuffers();
   callback.Run(gfx::SwapResult::SWAP_ACK);
 }
 
 bool SurfaceOzoneEglCast::ResizeNativeWindow(const gfx::Size& viewport_size) {
   return parent_->ResizeDisplay(viewport_size);
 }
 
-scoped_ptr<gfx::VSyncProvider> SurfaceOzoneEglCast::CreateVSyncProvider() {
+std::unique_ptr<gfx::VSyncProvider> SurfaceOzoneEglCast::CreateVSyncProvider() {
   return nullptr;
 }
 
 void* /* EGLConfig */ SurfaceOzoneEglCast::GetEGLSurfaceConfig(
     const EglConfigCallbacks& egl) {
   EGLint config_attribs[] = {EGL_BUFFER_SIZE,
                              32,
                              EGL_ALPHA_SIZE,
                              8,
                              EGL_BLUE_SIZE,
                              8,
                              EGL_GREEN_SIZE,
                              8,
                              EGL_RED_SIZE,
                              8,
                              EGL_RENDERABLE_TYPE,
                              EGL_OPENGL_ES2_BIT,
                              EGL_SURFACE_TYPE,
                              EGL_WINDOW_BIT,
                              EGL_NONE};
   return ChooseEGLConfig(egl, config_attribs);
 }
 
 }  // namespace ui