[Autofill] Add UMA timing metrics for requestAutocomplete dialog.

chrome/browser/ui/browser_tab_contents.cc

 // Copyright (c) 2012 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/ui/browser_tab_contents.h"
 
 #include "base/command_line.h"
 #include "chrome/browser/api/infobars/infobar_service.h"
 #include "chrome/browser/autofill/autofill_external_delegate.h"
 #include "chrome/browser/autofill/autofill_manager.h"
@@ skipping 87 matching lines @@
   // Create all the tab helpers.
 
   Profile* profile =
       Profile::FromBrowserContext(web_contents->GetBrowserContext());
 
   // SessionTabHelper comes first because it sets up the tab ID, and other
   // helpers may rely on that.
   SessionTabHelper::CreateForWebContents(web_contents);
 
   AlternateErrorPageTabObserver::CreateForWebContents(web_contents);
-  TabAutofillManagerDelegate::CreateForWebContents(web_contents);
+  autofill::TabAutofillManagerDelegate::CreateForWebContents(web_contents);
   AutofillManager::CreateForWebContentsAndDelegate(
-      web_contents, TabAutofillManagerDelegate::FromWebContents(web_contents));
+      web_contents,
+      autofill::TabAutofillManagerDelegate::FromWebContents(web_contents));
   if (CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kEnableNewAutofillUi)) {
     AutofillExternalDelegate::CreateForWebContentsAndManager(
         web_contents, AutofillManager::FromWebContents(web_contents));
     AutofillManager::FromWebContents(web_contents)->SetExternalDelegate(
         AutofillExternalDelegate::FromWebContents(web_contents));
   }
   BlockedContentTabHelper::CreateForWebContents(web_contents);
   BookmarkTabHelper::CreateForWebContents(web_contents);
   chrome_browser_net::LoadTimeStatsTabHelper::CreateForWebContents(
@@ skipping 55 matching lines @@
   if (OneClickSigninHelper::CanOffer(
           web_contents, OneClickSigninHelper::CAN_OFFER_FOR_ALL, "", NULL)) {
     OneClickSigninHelper::CreateForWebContents(web_contents);
   }
 #endif
 
 #if defined(OS_WIN)
   MetroPinTabHelper::CreateForWebContents(web_contents);
 #endif
 }