Setting up external delegate calls to allow a future delegate to handle autofill

chrome/browser/autocomplete_history_manager.h

 // 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.
 
 #ifndef CHROME_BROWSER_AUTOCOMPLETE_HISTORY_MANAGER_H_
 #define CHROME_BROWSER_AUTOCOMPLETE_HISTORY_MANAGER_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 31 matching lines @@
       int query_id,
       const string16& name,
       const string16& prefix,
       const std::vector<string16>& autofill_values,
       const std::vector<string16>& autofill_labels,
       const std::vector<string16>& autofill_icons,
       const std::vector<int>& autofill_unique_ids);
   void OnFormSubmitted(const webkit_glue::FormData& form);
 
   // Sets our external delegate.
-  void SetExternalDelegate(AutofillExternalDelegate* delegate) {
-    external_delegate_ = delegate;
-  }
+  void SetExternalDelegate(AutofillExternalDelegate* delegate);
 
  protected:
   friend class AutocompleteHistoryManagerTest;
   friend class AutofillManagerTest;
   FRIEND_TEST_ALL_PREFIXES(AutocompleteHistoryManagerTest, ExternalDelegate);
   FRIEND_TEST_ALL_PREFIXES(AutofillManagerTest, TestTabContents);
 
   // For tests.
   AutocompleteHistoryManager(TabContents* tab_contents,
                              Profile* profile,
@@ skipping 26 matching lines @@
   std::vector<int> autofill_unique_ids_;
 
   // Delegate to perform external processing (display, selection) on
   // our behalf.  Weak.
   AutofillExternalDelegate* external_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(AutocompleteHistoryManager);
 };
 
 #endif  // CHROME_BROWSER_AUTOCOMPLETE_HISTORY_MANAGER_H_