Convert remaining scoped_ptr -> std::unique_ptr in //mojo/edk (minus js).

mojo/dart/dart_snapshotter/main.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 <iostream>
 
 #include "base/at_exit.h"
 #include "base/basictypes.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 43 matching lines @@
 
   const base::CommandLine& command_line =
       *base::CommandLine::ForCurrentProcess();
 
   if (command_line.HasSwitch(kHelp) || command_line.GetArgs().empty()) {
     Usage();
     return 0;
   }
 
   // Initialize mojo.
-  mojo::embedder::Init(
-      make_scoped_ptr(new mojo::embedder::SimplePlatformSupport()));
+  // TODO(vtl): Use make_unique when C++14 is available.
+  mojo::embedder::Init(std::unique_ptr<mojo::embedder::PlatformSupport>(
+      new mojo::embedder::SimplePlatformSupport()));
 
   InitDartVM();
 
   CHECK(command_line.HasSwitch(kPackageRoot)) << "Need --package-root";
   CHECK(command_line.HasSwitch(kSnapshot)) << "Need --snapshot";
   auto args = command_line.GetArgs();
   CHECK(args.size() == 1);
 
   Dart_Isolate isolate = CreateDartIsolate();
   CHECK(isolate);
@@ skipping 15 matching lines @@
 
   // Load script.
   tonic::DartScriptLoaderSync::LoadScript(args[0],
                                           isolate_data->library_provider());
 
   // Write snapshot.
   WriteSnapshot(command_line.GetSwitchValuePath(kSnapshot));
 
   return 0;
 }