Use ic_offline_pin_white for offline indicator UI

Bug: 881619
Change-Id: I9a7916c4391117e570b08477852c3d77c8ce0468
Reviewed-on: https://chromium-review.googlesource.com/1212086Reviewed-by: Peter Williamson <petewil@chromium.org>
Commit-Queue: Jian Li <jianli@chromium.org>
Cr-Commit-Position: refs/heads/master@{#589379}

chrome/android/java/src/org/chromium/chrome/browser/offlinepages/indicator/OfflineIndicatorController.java

@@ -228,8 +228,7 @@ public class OfflineIndicatorController implements ConnectivityDetector.Observer
             return;
         }
 
-        Drawable icon =
-                AppCompatResources.getDrawable(activity, R.drawable.ic_offline_pin_blue_white);
+        Drawable icon = AppCompatResources.getDrawable(activity, R.drawable.ic_offline_pin_white);
         Snackbar snackbar =
                 Snackbar.make(activity.getString(R.string.offline_indicator_offline_title), this,
                                 Snackbar.TYPE_ACTION, Snackbar.UMA_OFFLINE_INDICATOR)