Convert //ppapi to use std::unique_ptr

ppapi/proxy/ppb_graphics_3d_proxy.h

 // 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.
 
 #ifndef PPAPI_PROXY_PPB_GRAPHICS_3D_PROXY_H_
 #define PPAPI_PROXY_PPB_GRAPHICS_3D_PROXY_H_
 
 #include <stdint.h>
 
 #include <vector>
@@ skipping 44 matching lines @@
   gpu::CommandBuffer::State WaitForGetOffsetInRange(int32_t start,
                                                     int32_t end) override;
   void EnsureWorkVisible() override;
 
  private:
   // PPB_Graphics3D_Shared overrides.
   gpu::CommandBuffer* GetCommandBuffer() override;
   gpu::GpuControl* GetGpuControl() override;
   int32_t DoSwapBuffers(const gpu::SyncToken& sync_token) override;
 
-  scoped_ptr<PpapiCommandBufferProxy> command_buffer_;
+  std::unique_ptr<PpapiCommandBufferProxy> command_buffer_;
 
   DISALLOW_COPY_AND_ASSIGN(Graphics3D);
 };
 
 class PPB_Graphics3D_Proxy : public InterfaceProxy {
  public:
   explicit PPB_Graphics3D_Proxy(Dispatcher* dispatcher);
   ~PPB_Graphics3D_Proxy();
 
   static PP_Resource CreateProxyResource(
@@ skipping 45 matching lines @@
   ProxyCompletionCallbackFactory<PPB_Graphics3D_Proxy> callback_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PPB_Graphics3D_Proxy);
 };
 
 }  // namespace proxy
 }  // namespace ppapi
 
 #endif  // PPAPI_PROXY_PPB_GRAPHICS_3D_PROXY_H_