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

sync/internal_api/public/write_node.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_INTERNAL_API_PUBLIC_WRITE_NODE_H_
 #define SYNC_INTERNAL_API_PUBLIC_WRITE_NODE_H_
 #pragma once
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "sync/internal_api/public/base_node.h"
 #include "sync/internal_api/public/syncable/model_type.h"
 
-namespace syncer {
-class Cryptographer;
-class TestBookmarkModelAssociator;
-}
-
-namespace syncable {
-class Entry;
-class MutableEntry;
-}
-
 namespace sync_pb {
 class AppSpecifics;
 class AutofillSpecifics;
 class AutofillProfileSpecifics;
 class BookmarkSpecifics;
 class EntitySpecifics;
 class ExtensionSpecifics;
 class SessionSpecifics;
 class NigoriSpecifics;
 class PasswordSpecificsData;
 class ThemeSpecifics;
 class TypedUrlSpecifics;
 }
 
 namespace syncer {
 
+class Cryptographer;
+class TestBookmarkModelAssociator;
 class WriteTransaction;
 
+namespace syncable {
+class Entry;
+class MutableEntry;
+}
+
 // WriteNode extends BaseNode to add mutation, and wraps
 // syncable::MutableEntry. A WriteTransaction is needed to create a WriteNode.
 class WriteNode : public BaseNode {
  public:
   enum InitUniqueByCreationResult {
     INIT_SUCCESS,
     // The tag passed into this method was empty.
     INIT_FAILED_EMPTY_TAG,
     // An entry with this tag already exists.
     INIT_FAILED_ENTRY_ALREADY_EXISTS,
@@ skipping 140 matching lines @@
 
   // The sync API transaction that is the parent of this node.
   WriteTransaction* transaction_;
 
   DISALLOW_COPY_AND_ASSIGN(WriteNode);
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_INTERNAL_API_PUBLIC_WRITE_NODE_H_