Convert //ppapi to use std::unique_ptr

ppapi/proxy/ppapi_command_buffer_proxy.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.
 
 #include "ppapi/proxy/ppapi_command_buffer_proxy.h"
 
 #include <utility>
 
 #include "base/numerics/safe_conversions.h"
 #include "ppapi/proxy/ppapi_messages.h"
@@ skipping 132 matching lines @@
       last_state_.error = gpu::error::kLostContext;
     return NULL;
   }
 
   if (*id <= 0 || !handle.is_shmem()) {
     if (last_state_.error == gpu::error::kNoError)
       last_state_.error = gpu::error::kOutOfBounds;
     return NULL;
   }
 
-  scoped_ptr<base::SharedMemory> shared_memory(
+  std::unique_ptr<base::SharedMemory> shared_memory(
       new base::SharedMemory(handle.shmem(), false));
 
   // Map the shared memory on demand.
   if (!shared_memory->memory()) {
     if (!shared_memory->Map(handle.size())) {
       if (last_state_.error == gpu::error::kNoError)
         last_state_.error = gpu::error::kOutOfBounds;
       *id = -1;
       return NULL;
     }
@@ skipping 157 matching lines @@
   message->set_unblock(true);
   Send(message);
 
   flush_info_->flush_pending = false;
   flush_info_->resource.SetHostResource(0, 0);
   flushed_fence_sync_release_ = pending_fence_sync_release_;
 }
 
 }  // namespace proxy
 }  // namespace ppapi