[Autofill] Add UMA timing metrics for requestAutocomplete dialog.

chrome/browser/autofill/autofill_manager_unittest.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 <algorithm>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
@@ skipping 615 matching lines @@
 
   virtual void SetUp() OVERRIDE {
     TestingProfile* profile = CreateProfile();
     profile->CreateRequestContext();
     browser_context_.reset(profile);
     PersonalDataManagerFactory::GetInstance()->SetTestingFactory(
         profile, TestPersonalDataManager::Build);
 
     ChromeRenderViewHostTestHarness::SetUp();
     io_thread_.StartIOThread();
-    TabAutofillManagerDelegate::CreateForWebContents(web_contents());
+    autofill::TabAutofillManagerDelegate::CreateForWebContents(web_contents());
     personal_data_.SetBrowserContext(profile);
     autofill_manager_ = new TestAutofillManager(
         web_contents(),
-        TabAutofillManagerDelegate::FromWebContents(web_contents()),
+        autofill::TabAutofillManagerDelegate::FromWebContents(web_contents()),
         &personal_data_);
 
     file_thread_.Start();
   }
 
   virtual void TearDown() OVERRIDE {
     // Order of destruction is important as AutofillManager relies on
     // PersonalDataManager to be around when it gets destroyed. Also, a real
     // AutofillManager is tied to the lifetime of the WebContents, so it must
     // be destroyed at the destruction of the WebContents.
@@ skipping 2571 matching lines @@
 
   FormData form;
   CreateTestAddressFormData(&form);
   std::vector<FormData> forms(1, form);
   FormsSeen(forms);
   const FormFieldData& field = form.fields[0];
   GetAutofillSuggestions(form, field);  // should call the delegate's OnQuery()
 
   autofill_manager_->SetExternalDelegate(NULL);
 }