Make const versions GetTemplateURLForKeyword, GetTemplateURLForGUID, GetTemplateURLForHost

components/omnibox/browser/base_search_provider.cc

 // Copyright 2014 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 "components/omnibox/browser/base_search_provider.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/feature_list.h"
@@ skipping 115 matching lines @@
 void BaseSearchProvider::DeleteMatch(const AutocompleteMatch& match) {
   DCHECK(match.deletable);
   if (!match.GetAdditionalInfo(BaseSearchProvider::kDeletionUrlKey).empty()) {
     deletion_handlers_.push_back(base::MakeUnique<SuggestionDeletionHandler>(
         match.GetAdditionalInfo(BaseSearchProvider::kDeletionUrlKey),
         client_->GetRequestContext(),
         base::Bind(&BaseSearchProvider::OnDeletionComplete,
                    base::Unretained(this))));
   }
 
-  TemplateURL* template_url =
+  const TemplateURL* template_url =
       match.GetTemplateURL(client_->GetTemplateURLService(), false);
   // This may be NULL if the template corresponding to the keyword has been
   // deleted or there is no keyword set.
   if (template_url != NULL) {
     client_->DeleteMatchingURLsForKeywordFromHistory(template_url->id(),
                                                      match.contents);
   }
 
   // Immediately update the list of matches to show the match was deleted,
   // regardless of whether the server request actually succeeds.
@@ skipping 335 matching lines @@
 
 void BaseSearchProvider::OnDeletionComplete(
     bool success, SuggestionDeletionHandler* handler) {
   RecordDeletionResult(success);
   deletion_handlers_.erase(std::remove_if(
       deletion_handlers_.begin(), deletion_handlers_.end(),
       [handler](const std::unique_ptr<SuggestionDeletionHandler>& elem) {
         return elem.get() == handler;
       }));
 }