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

net/proxy/dhcp_proxy_script_adapter_fetcher_win.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 "net/proxy/dhcp_proxy_script_adapter_fetcher_win.h"
 
 #include "base/message_loop_proxy.h"
 #include "base/metrics/histogram.h"
 #include "base/sys_string_conversions.h"
 #include "base/task.h"
@@ skipping 40 matching lines @@
 
 void DhcpProxyScriptAdapterFetcher::Fetch(
     const std::string& adapter_name, CompletionCallback* callback) {
   DCHECK(CalledOnValidThread());
   DCHECK_EQ(state_, STATE_START);
   result_ = ERR_IO_PENDING;
   pac_script_ = string16();
   state_ = STATE_WAIT_DHCP;
   callback_ = callback;
 
-  wait_timer_.Start(FROM_HERE, ImplGetTimeout(),
+  wait_timer_.Start(ImplGetTimeout(),
                     this, &DhcpProxyScriptAdapterFetcher::OnTimeout);
   worker_thread_ = ImplCreateWorkerThread(AsWeakPtr());
   worker_thread_->Start(adapter_name);
 }
 
 void DhcpProxyScriptAdapterFetcher::Cancel() {
   DCHECK(CalledOnValidThread());
   callback_ = NULL;
   wait_timer_.Stop();
   script_fetcher_.reset();
@@ skipping 216 matching lines @@
     // Return only up to the first null in case of embedded NULLs; if the
     // server is giving us back a buffer with embedded NULLs, something is
     // broken anyway.
     return std::string(reinterpret_cast<const char *>(wpad_params.Data));
   }
 
   return "";
 }
 
 }  // namespace net