[AiS] widen AiS to iOS.

chrome/browser/search_engines/ui_thread_search_terms_data.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 "chrome/browser/search_engines/ui_thread_search_terms_data.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/metrics/field_trial.h"
 #include "base/prefs/pref_service.h"
@@ skipping 106 matching lines @@
       BrowserThread::CurrentlyOn(BrowserThread::UI));
 #if defined(OS_ANDROID)
   sync_pb::SyncEnums::DeviceType device_type =
       browser_sync::DeviceInfo::GetLocalDeviceType();
   if (device_type == sync_pb::SyncEnums_DeviceType_TYPE_PHONE) {
     return OmniboxFieldTrial::EnableAnswersInSuggest() ?
         "chrome-mobile-ext-ansg" : "chrome-mobile-ext";
   }
   return OmniboxFieldTrial::EnableAnswersInSuggest() ?
       "chrome-ext-ansg" : "chrome-ext";
+#elif defined(OS_IOS)
+  return OmniboxFieldTrial::EnableAnswersInSuggest() ?
+      "chrome-ext-ansg" : "chrome-ext";
 #else
   return "chrome-ext";
 #endif
 }
 
 bool UIThreadSearchTermsData::EnableAnswersInSuggest() const {
   return OmniboxFieldTrial::EnableAnswersInSuggest();
 }
 
 bool UIThreadSearchTermsData::IsShowingSearchTermsOnSearchResultsPages() const {
@@ skipping 54 matching lines @@
     return version;
   }
   return "unknown";
 }
 
 // static
 void UIThreadSearchTermsData::SetGoogleBaseURL(const std::string& base_url) {
   delete google_base_url_;
   google_base_url_ = base_url.empty() ? NULL : new std::string(base_url);
 }