Event tracing for sync events

chrome/browser/sync/syncable/syncable.h

 // Copyright (c) 2011 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 CHROME_BROWSER_SYNC_SYNCABLE_SYNCABLE_H_
 #define CHROME_BROWSER_SYNC_SYNCABLE_SYNCABLE_H_
 #pragma once
 
 #include <algorithm>
 #include <bitset>
@@ skipping 1193 matching lines @@
                   Directory* directory);
 
   void Lock();
   void Unlock();
 
   const tracked_objects::Location from_here_;
   const char* const name_;
   WriterTag writer_;
   Directory* const directory_;
   Directory::Kernel* const dirkernel_;  // for brevity
-  base::TimeTicks time_acquired_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(BaseTransaction);
 };
 
 // Locks db in constructor, unlocks in destructor.
 class ReadTransaction : public BaseTransaction {
  public:
   ReadTransaction(const tracked_objects::Location& from_here,
                   Directory* directory);
@@ skipping 46 matching lines @@
 bool IsLegalNewParent(BaseTransaction* trans, const Id& id, const Id& parentid);
 
 // This function sets only the flags needed to get this entry to sync.
 void MarkForSyncing(syncable::MutableEntry* e);
 
 }  // namespace syncable
 
 std::ostream& operator <<(std::ostream&, const syncable::Blob&);
 
 #endif  // CHROME_BROWSER_SYNC_SYNCABLE_SYNCABLE_H_