Revert "Currently, base/timer.cc calls PostTask with FROM_HERE as the Location,

chrome/common/important_file_writer.cc

 // 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.
 
 #include "chrome/common/important_file_writer.h"
 
 #include <stdio.h>
 
 #include <string>
 
@@ skipping 128 matching lines @@
   DCHECK(serializer);
   serializer_ = serializer;
 
   if (!MessageLoop::current()) {
     // Happens in unit tests.
     DoScheduledWrite();
     return;
   }
 
   if (!timer_.IsRunning()) {
-    timer_.Start(FROM_HERE, commit_interval_, this,
+    timer_.Start(commit_interval_, this,
                  &ImportantFileWriter::DoScheduledWrite);
   }
 }
 
 void ImportantFileWriter::DoScheduledWrite() {
   DCHECK(serializer_);
   std::string data;
   if (serializer_->SerializeData(&data)) {
     WriteNow(data);
   } else {
     LOG(WARNING) << "failed to serialize data to be saved in "
                  << path_.value();
   }
   serializer_ = NULL;
 }