Convert //ppapi to use std::unique_ptr

ppapi/proxy/serialized_var.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/serialized_var.h"
 
 #include "base/logging.h"
 #include "ipc/ipc_message_utils.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/proxy/dispatcher.h"
@@ skipping 96 matching lines @@
   // that returns a var. This means the message handler didn't write to the
   // output parameter, or possibly you used the wrong helper class
   // (normally SerializedVarReturnValue).
   DCHECK(serialization_rules_.get());
 
 #ifndef NDEBUG
   // We should only be serializing something once.
   DCHECK(!has_been_serialized_);
   has_been_serialized_ = true;
 #endif
-  scoped_ptr<RawVarDataGraph> data = RawVarDataGraph::Create(var_, instance_);
+  std::unique_ptr<RawVarDataGraph> data =
+      RawVarDataGraph::Create(var_, instance_);
   if (data) {
     m->WriteBool(true);  // Success.
     data->Write(m, base::Bind(&DefaultHandleWriter));
   } else {
     m->WriteBool(false);  // Failure.
   }
 }
 
 void SerializedVar::Inner::WriteDataToMessage(
     base::Pickle* m,
@@ skipping 330 matching lines @@
     const std::string& str) {
   inner_->ForceSetVarValueForTest(StringVar::StringToPPVar(str));
 }
 
 SerializedVarTestReader::SerializedVarTestReader(const SerializedVar& var)
     : SerializedVar(var) {
 }
 
 }  // namespace proxy
 }  // namespace ppapi