sync: move internal_api components used by chrome/browser into internal_api/public

sync/internal_api/write_transaction.h

Index: sync/internal_api/write_transaction.h
diff --git a/sync/internal_api/write_transaction.h b/sync/internal_api/write_transaction.h
deleted file mode 100644
index 4364cdd1a1fb0c17f91b9ee33a303fb22cbd8089..0000000000000000000000000000000000000000
--- a/sync/internal_api/write_transaction.h
+++ /dev/null
@@ -1,57 +0,0 @@
-// 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_WRITE_TRANSACTION_H_
-#define SYNC_INTERNAL_API_WRITE_TRANSACTION_H_
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "sync/internal_api/base_transaction.h"
-
-namespace syncable {
-class BaseTransaction;
-class WriteTransaction;
-}  // namespace syncable
-
-namespace tracked_objects {
-class Location;
-}  // namespace tracked_objects
-
-namespace sync_api {
-
-// Sync API's WriteTransaction is a read/write BaseTransaction.  It wraps
-// a syncable::WriteTransaction.
-//
-// NOTE: Only a single model type can be mutated for a given
-// WriteTransaction.
-class WriteTransaction : public BaseTransaction {
- public:
-  // Start a new read/write transaction.
-  WriteTransaction(const tracked_objects::Location& from_here,
-                   UserShare* share);
-  virtual ~WriteTransaction();
-
-  // Provide access to the syncable.h transaction from the API WriteNode.
-  virtual syncable::BaseTransaction* GetWrappedTrans() const OVERRIDE;
-  syncable::WriteTransaction* GetWrappedWriteTrans() { return transaction_; }
-
- protected:
-  WriteTransaction() {}
-
-  void SetTransaction(syncable::WriteTransaction* trans) {
-      transaction_ = trans;
-  }
-
- private:
-  void* operator new(size_t size);  // Transaction is meant for stack use only.
-
-  // The underlying syncable object which this class wraps.
-  syncable::WriteTransaction* transaction_;
-
-  DISALLOW_COPY_AND_ASSIGN(WriteTransaction);
-};
-
-} // namespace sync_api
-
-#endif  // SYNC_INTERNAL_API_WRITE_TRANSACTION_H_