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

mojo/edk/embedder/embedder_unittest.cc

 // Copyright 2014 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 "mojo/edk/embedder/embedder.h"
 
 #include <string.h>
 
+#include <memory>
+
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/test/test_timeouts.h"
 #include "mojo/edk/embedder/platform_channel_pair.h"
 #include "mojo/edk/embedder/test_embedder.h"
 #include "mojo/edk/system/mutex.h"
@@ skipping 428 matching lines @@
       FROM_HERE,
       base::Bind(&DestroyChannelOnIOThread, base::Unretained(channel_info)));
 }
 
 TEST_F(EmbedderTest, ChannelShutdownRace_MessagePipeClose) {
   const size_t kIterations = 1000;
   mojo::test::ScopedIPCSupport ipc_support(test_io_task_runner());
 
   for (size_t i = 0; i < kIterations; i++) {
     PlatformChannelPair channel_pair;
-    scoped_ptr<ScopedTestChannel> server_channel(
+    std::unique_ptr<ScopedTestChannel> server_channel(
         new ScopedTestChannel(channel_pair.PassServerHandle()));
     server_channel->WaitForChannelCreationCompletion();
     server_channel->NoWaitOnShutdown();
 
     MojoHandle server_mp = server_channel->bootstrap_message_pipe();
     EXPECT_NE(server_mp, MOJO_HANDLE_INVALID);
 
     // Race between channel shutdown and closing a message pipe. The message
     // pipe doesn't have to be the bootstrap pipe. It just has to be bound to
     // the channel.
@@ skipping 315 matching lines @@
 
   EXPECT_TRUE(test::Shutdown());
 }
 
 // TODO(vtl): Test immediate write & close.
 // TODO(vtl): Test broken-connection cases.
 
 }  // namespace
 }  // namespace embedder
 }  // namespace mojo