Coverity: Initialize member variables.

chrome/browser/autocomplete_history_manager.cc

 // 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.
 
 #include "chrome/browser/autocomplete_history_manager.h"
 
 #include <vector>
 
 #include "base/string16.h"
 #include "base/string_number_conversions.h"
@@ skipping 221 matching lines @@
 }
 
 AutocompleteHistoryManager::AutocompleteHistoryManager(
     TabContents* tab_contents,
     Profile* profile,
     WebDataService* wds)
     : TabContentsObserver(tab_contents),
       profile_(profile),
       web_data_service_(wds),
       pending_query_handle_(0),
-      query_id_(0) {
+      query_id_(0),
+      external_delegate_(NULL) {
   autofill_enabled_.Init(
       prefs::kAutofillEnabled, profile_->GetPrefs(), NULL);
 }
 
 void AutocompleteHistoryManager::CancelPendingQuery() {
   if (pending_query_handle_) {
     SendSuggestions(NULL);
     if (web_data_service_.get())
       web_data_service_->CancelRequest(pending_query_handle_);
     pending_query_handle_ = 0;
@@ skipping 38 matching lines @@
                                              autofill_icons_,
                                              autofill_unique_ids_));
   }
 
   query_id_ = 0;
   autofill_values_.clear();
   autofill_labels_.clear();
   autofill_icons_.clear();
   autofill_unique_ids_.clear();
 }