[Autofill] Add UMA timing metrics for requestAutocomplete dialog.

chrome/browser/autofill/autofill_external_delegate_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 <vector>
 
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/string16.h"
 #include "chrome/browser/autofill/autofill_manager.h"
@@ skipping 84 matching lines @@
     external_delegate_->OnQuery(query_id, form, field, element_bounds, false);
   }
 
   scoped_refptr<MockAutofillManager> autofill_manager_;
   scoped_ptr<testing::NiceMock<MockAutofillExternalDelegate> >
       external_delegate_;
 
  private:
   virtual void SetUp() OVERRIDE {
     ChromeRenderViewHostTestHarness::SetUp();
-    TabAutofillManagerDelegate::CreateForWebContents(web_contents());
+    autofill::TabAutofillManagerDelegate::CreateForWebContents(web_contents());
     autofill_manager_ = new MockAutofillManager(
         web_contents(),
-        TabAutofillManagerDelegate::FromWebContents(web_contents()));
+        autofill::TabAutofillManagerDelegate::FromWebContents(web_contents()));
     external_delegate_.reset(
         new testing::NiceMock<MockAutofillExternalDelegate>(
             web_contents(),
             autofill_manager_));
   }
 
   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
@@ skipping 165 matching lines @@
   EXPECT_CALL(*autofill_manager_, OnFillAutofillFormData(_, _, _, _));
 
   EXPECT_CALL(*external_delegate_, HideAutofillPopup());
 
   // This should trigger a call to hide the popup since
   // we've selected an option.
   external_delegate_->DidAcceptSuggestion(
       suggestions[0],
       WebAutofillClient::MenuItemIDPasswordEntry);
 }