Enable TCP preconnect and DNS preresolve on cellular.

chrome/browser/net/prediction_options.h

Index: chrome/browser/net/prediction_options.h
diff --git a/chrome/browser/net/prediction_options.h b/chrome/browser/net/prediction_options.h
index 2829409082c96036ea38cfedae9370c681299020..49c33df135844d0c5915c05e30e74140409db54d 100644
--- a/chrome/browser/net/prediction_options.h
+++ b/chrome/browser/net/prediction_options.h
@@ -34,15 +34,28 @@ void RegisterPredictionOptionsProfilePrefs(
 // prefs::kNetworkPredictionOptions (if does not have user setting).
 void MigrateNetworkPredictionUserPrefs(PrefService* pref_service);
 
-// The following two global functions determine whether predictive network
-// actions are enabled, based on preferences and network type.
+// The following two global functions determine whether prefetching
+// and prerendering are enabled, based on preferences and network type.
 
 // To be executed on the IO thread only.
-bool CanPredictNetworkActionsIO(ProfileIOData* profile_io_data);
+bool CanPrefetchAndPrerenderIO(ProfileIOData* profile_io_data);
 
 // To be executed on the UI thread only.
+bool CanPrefetchAndPrerenderUI(PrefService* prefs);
+
+// TODO(bnc): remove the following function as soon as Android Chrome is
+// modified to use CanPrefetchAndPrerenderUI instead.
 bool CanPredictNetworkActionsUI(PrefService* prefs);
 
+// The following two global functions determine whether TCP preconnect
+// and DNS preresolution are enabled, based on preferences.
+
+// To be executed on the IO thread only.
+bool CanPreresolveAndPreconnectIO(ProfileIOData* profile_io_data);
+
+// To be executed on the UI thread only.
+bool CanPreresolveAndPreconnectUI(PrefService* prefs);
+
 }  // namespace chrome_browser_net
 
 #endif  // CHROME_BROWSER_NET_PREDICTION_OPTIONS_H_