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

sync/syncable/mutable_entry.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 "sync/syncable/mutable_entry.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "sync/syncable/directory.h"
 #include "sync/syncable/scoped_index_updater.h"
 #include "sync/syncable/scoped_kernel_lock.h"
 #include "sync/syncable/syncable-inl.h"
 #include "sync/syncable/syncable_changes_version.h"
 #include "sync/syncable/syncable_util.h"
 #include "sync/syncable/write_transaction.h"
 
 using std::string;
 
+namespace syncer {
 namespace syncable {
 
 MutableEntry::MutableEntry(WriteTransaction* trans, Create,
                            const Id& parent_id, const string& name)
     : Entry(trans),
       write_transaction_(trans) {
   Init(trans, parent_id, name);
 }
 
 
@@ skipping 372 matching lines @@
   Put(NEXT_ID, successor_id);
   return true;
 }
 
 bool MutableEntry::Put(BitTemp field, bool value) {
   DCHECK(kernel_);
   kernel_->put(field, value);
   return true;
 }
 
-}
+}  // namespace syncable
+}  // namespace syncer