Convert //cc from scoped_ptr to std::unique_ptr.

cc/output/vulkan_in_process_context_provider.cc

 // Copyright (c) 2016 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/output/vulkan_in_process_context_provider.h"
 
 #include <vector>
 
 #include "gpu/vulkan/vulkan_device_queue.h"
 
 #if defined(VK_USE_PLATFORM_XLIB_KHR)
 #include "ui/gfx/x/x11_types.h"
 #endif  // defined(VK_USE_PLATFORM_XLIB_KHR)
 
 namespace cc {
 
 scoped_refptr<VulkanInProcessContextProvider>
 VulkanInProcessContextProvider::Create() {
   scoped_refptr<VulkanInProcessContextProvider> context_provider(
       new VulkanInProcessContextProvider);
   if (!context_provider->Initialize())
     return nullptr;
   return context_provider;
 }
 
 bool VulkanInProcessContextProvider::Initialize() {
-  scoped_ptr<gpu::VulkanDeviceQueue> device_queue(new gpu::VulkanDeviceQueue);
+  std::unique_ptr<gpu::VulkanDeviceQueue> device_queue(
+      new gpu::VulkanDeviceQueue);
   if (device_queue->Initialize(
           gpu::VulkanDeviceQueue::GRAPHICS_QUEUE_FLAG |
           gpu::VulkanDeviceQueue::PRESENTATION_SUPPORT_QUEUE_FLAG)) {
     device_queue_ = std::move(device_queue);
     return true;
   }
 
   return false;
 }
 
 void VulkanInProcessContextProvider::Destroy() {
   if (device_queue_) {
     device_queue_->Destroy();
     device_queue_.reset();
   }
 }
 
 gpu::VulkanDeviceQueue* VulkanInProcessContextProvider::GetDeviceQueue() {
   return device_queue_.get();
 }
 
 VulkanInProcessContextProvider::VulkanInProcessContextProvider() {}
 
 VulkanInProcessContextProvider::~VulkanInProcessContextProvider() {}
 
 }  // namespace cc