Whitelist data savings prefs for the reduction proxy.

chrome/browser/extensions/api/preference/chrome_direct_setting_api.cc

Index: chrome/browser/extensions/api/preference/chrome_direct_setting_api.cc
diff --git a/chrome/browser/extensions/api/preference/chrome_direct_setting_api.cc b/chrome/browser/extensions/api/preference/chrome_direct_setting_api.cc
index 4d396713990664dbba1b9edbb2a3a9e9a5fe53d7..7878fc5c6fa25f32260a6f9634915ee6d250523d 100644
--- a/chrome/browser/extensions/api/preference/chrome_direct_setting_api.cc
+++ b/chrome/browser/extensions/api/preference/chrome_direct_setting_api.cc
@@ -26,6 +26,9 @@ class PreferenceWhitelist {
   PreferenceWhitelist() {
     whitelist_.insert("googlegeolocationaccess.enabled");
     whitelist_.insert("spdy_proxy.enabled");
+    whitelist_.insert("data_reduction.daily_original_length");
+    whitelist_.insert("data_reduction.daily_received_length");
+    whitelist_.insert("data_reduction.update_daily_lengths");
   }
 
   ~PreferenceWhitelist() {}