Add method to invoke mobile only field trials. Add a field trial that controls rollout of data comp…

chrome/browser/chrome_browser_field_trials.h

Index: chrome/browser/chrome_browser_field_trials.h
diff --git a/chrome/browser/chrome_browser_field_trials.h b/chrome/browser/chrome_browser_field_trials.h
index bd0cf6274a365b29c9e48a9a0e30b67779269b59..7755af5685b1238e9e7b3fb3648bac693b9fef02 100644
--- a/chrome/browser/chrome_browser_field_trials.h
+++ b/chrome/browser/chrome_browser_field_trials.h
@@ -33,6 +33,15 @@ class ChromeBrowserFieldTrials {
   // |local_state| is needed by some other methods called from within this one.
   void SetupDesktopFieldTrials(PrefService* local_state);
 
+#if defined(OS_ANDROID) || defined(OS_IOS)
+  // Sets up mobile-only field trials.
+  // Add invocation of your field trial initialization code in this method.
+  void SetupMobileFieldTrials();
+
+  // Mobile compression rollout field trial.
+  void DataCompressionProxyFieldTrial();
+#endif  // defined(OS_ANDROID) || defined(OS_IOS)
+
   // This is not quite a field trial initialization, but it's an initialization
   // that depends on a field trial, so why not? :-)
   // |local_state| is needed to reset a local pref based on the chosen group.