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

chrome/browser/chromeos/status/memory_menu_button.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/browser/chromeos/status/memory_menu_button.h"
 
 #include "base/file_util.h"
 #include "base/process_util.h"  // GetSystemMemoryInfo
 #include "base/stringprintf.h"
 #include "base/threading/thread_restrictions.h"
@@ skipping 48 matching lines @@
                  NotificationService::AllSources());
   UpdateTextAndSetNextTimer();
 }
 
 MemoryMenuButton::~MemoryMenuButton() {
 }
 
 void MemoryMenuButton::UpdateTextAndSetNextTimer() {
   UpdateText();
 
-  timer_.Start(FROM_HERE,
-               base::TimeDelta::FromSeconds(kUpdateIntervalSeconds), this,
+  timer_.Start(base::TimeDelta::FromSeconds(kUpdateIntervalSeconds), this,
                &MemoryMenuButton::UpdateTextAndSetNextTimer);
 }
 
 void MemoryMenuButton::UpdateText() {
   base::GetSystemMemoryInfo(meminfo_.get());
   // "Anonymous" memory, meaning not mapped to a file (which has a name),
   // represents memory that has been dynamically allocated to a process.
   // It thus approximates heap memory usage across all processes.
   int anon_kb = meminfo_->active_anon + meminfo_->inactive_anon;
   std::wstring label = base::StringPrintf(L"%d MB (%d)",
@@ skipping 181 matching lines @@
       }
       break;
     }
     default:
       NOTREACHED() << L"Received unexpected notification";
       break;
   }
 }
 
 }  // namespace chromeos