[Sync] Move sync/{internal_api,syncable} into syncer namespace

sync/engine/process_commit_response_command.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 SYNC_ENGINE_PROCESS_COMMIT_RESPONSE_COMMAND_H_
 #define SYNC_ENGINE_PROCESS_COMMIT_RESPONSE_COMMAND_H_
 #pragma once
 
 #include <set>
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "sync/engine/model_changing_syncer_command.h"
 #include "sync/engine/syncproto.h"
 
+namespace syncer {
+
+namespace sessions {
+class OrderedCommitSet;
+}
+
 namespace syncable {
 class Id;
 class WriteTransaction;
 class MutableEntry;
 class Directory;
 }
 
-namespace syncer {
-
-namespace sessions {
-class OrderedCommitSet;
-}
-
 // A class that processes the server's response to our commmit attempt.  Note
 // that some of the preliminary processing is performed in
 // PostClientToServerMessage command.
 //
 // As part of processing the commit response, this command will modify sync
 // entries.  It can rename items, update their versions, etc.
 //
 // This command will return a non-SYNCER_OK value if an error occurred while
 // processing the response, or if the server's response indicates that it had
 // trouble processing the request.
@@ skipping 87 matching lines @@
   const sessions::OrderedCommitSet& commit_set_;
   const ClientToServerMessage& commit_message_;
   const ClientToServerResponse& commit_response_;
 
   DISALLOW_COPY_AND_ASSIGN(ProcessCommitResponseCommand);
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_ENGINE_PROCESS_COMMIT_RESPONSE_COMMAND_H_