Cleanup: Remove for_search param from search::InstantExtendedEnabledParam()

components/search/search.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/search/search.h"
 
 #include <stddef.h>
 
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
@@ skipping 140 matching lines @@
 }
 
 // Given a FieldTrialFlags object, returns the boolean value of the provided
 // flag.
 bool GetBoolValueForFlagWithDefault(const std::string& flag,
                                     bool default_value,
                                     const FieldTrialFlags& flags) {
   return !!GetUInt64ValueForFlagWithDefault(flag, default_value ? 1 : 0, flags);
 }
 
-std::string InstantExtendedEnabledParam(bool for_search) {
-  // TODO(treib): Remove |for_search| and update callers that set it to true.
-  if (for_search)
-    return std::string();
+std::string InstantExtendedEnabledParam() {
   return std::string(google_util::kInstantExtendedAPIParam) + "=" +
          base::Uint64ToString(EmbeddedSearchPageVersion()) + "&";
 }
 
 std::string ForceInstantResultsParam(bool for_prerender) {
   return (for_prerender || !IsInstantExtendedAPIEnabled()) ? "ion=1&"
                                                            : std::string();
 }
 
 bool ShouldPrefetchSearchResults() {
@@ skipping 32 matching lines @@
 // |url| should either have a secure scheme or have a non-HTTPS base URL that
 // the user specified using --google-base-url. (This allows testers to use
 // --google-base-url to point at non-HTTPS servers, which eases testing.)
 bool IsSuitableURLForInstant(const GURL& url, const TemplateURL* template_url) {
   return template_url->HasSearchTermsReplacementKey(url) &&
          (url.SchemeIsCryptographic() ||
           google_util::StartsWithCommandLineGoogleBaseURL(url));
 }
 
 }  // namespace search