Remove TabContents from autofill unittests.

chrome/browser/autofill/autofill_external_delegate.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 "base/utf_string_conversions.h"
 #include "chrome/browser/autofill/autocomplete_history_manager.h"
 #include "chrome/browser/autofill/autofill_external_delegate.h"
 #include "chrome/browser/autofill/autofill_manager.h"
 #include "chrome/common/autofill_messages.h"
 #include "chrome/common/chrome_constants.h"
@@ skipping 93 matching lines @@
     // No suggestions, any popup currently showing is obsolete.
     HideAutofillPopup();
     return;
   }
 
   // Send to display.
   if (autofill_query_field_.is_focusable) {
     popup_visible_ = true;
     ApplyAutofillSuggestions(values, labels, icons, ids);
 
-    AutofillManager::FromWebContents(web_contents_)->
-        OnDidShowAutofillSuggestions(
-            has_autofill_item && !has_shown_autofill_popup_for_current_edit_);
+    autofill_manager_->OnDidShowAutofillSuggestions(
+        has_autofill_item && !has_shown_autofill_popup_for_current_edit_);
     has_shown_autofill_popup_for_current_edit_ |= has_autofill_item;
   }
 }
 
 void AutofillExternalDelegate::OnShowPasswordSuggestions(
     const std::vector<string16>& suggestions,
     const FormFieldData& field,
     const gfx::Rect& bounds) {
   autofill_query_field_ = field;
 
@@ skipping 222 matching lines @@
 
 
 #if defined(OS_MACOSX)
 
 void AutofillExternalDelegate::CreateForWebContentsAndManager(
     content::WebContents* web_contents,
     AutofillManager* autofill_manager) {
 }
 
 #endif