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

chrome/browser/renderer_host/safe_browsing_resource_handler.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/renderer_host/safe_browsing_resource_handler.h"
 
 #include "base/logging.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/prerender/prerender_final_status.h"
 #include "chrome/browser/prerender/prerender_tracker.h"
@@ skipping 264 matching lines @@
     return true;
   }
 
   AddRef();  // Balanced in OnUrlCheckResult().
   state_ = STATE_CHECKING_URL;
 
   // Record the start time of the check.
   url_check_start_time_ = base::TimeTicks::Now();
 
   // Start a timer to abort the check if it takes too long.
-  timer_.Start(FROM_HERE,
-               base::TimeDelta::FromMilliseconds(kCheckUrlTimeoutMs),
+  timer_.Start(base::TimeDelta::FromMilliseconds(kCheckUrlTimeoutMs),
                this, &SafeBrowsingResourceHandler::OnCheckUrlTimeout);
 
   return false;
 }
 
 void SafeBrowsingResourceHandler::ResumeRequest() {
   CHECK(state_ == STATE_NONE);
   CHECK(defer_state_ != DEFERRED_NONE);
 
   // Resume whatever stage got paused by the safe browsing check.
@@ skipping 52 matching lines @@
     rdh_->FollowDeferredRedirect(render_process_host_id_, request_id,
                                  false, GURL());
   }
 }
 
 void SafeBrowsingResourceHandler::ClearDeferredRequestInfo() {
   deferred_request_id_ = -1;
   deferred_url_ = GURL();
   deferred_redirect_response_ = NULL;
 }