Return a result from Fragment#shouldShowRequestPermissionRationale

bug:22523342

Change-Id: Ibacedec952316db705c57204fa448dbcada1c3e6
diff --git a/core/java/android/app/Fragment.java b/core/java/android/app/Fragment.java
index 5490fe7..66e2733 100644
--- a/core/java/android/app/Fragment.java
+++ b/core/java/android/app/Fragment.java
@@ -1249,7 +1249,8 @@
      */
     public boolean shouldShowRequestPermissionRationale(@NonNull String permission) {
         if (mHost != null) {
-            mHost.getContext().getPackageManager().shouldShowRequestPermissionRationale(permission);
+            return mHost.getContext().getPackageManager()
+                    .shouldShowRequestPermissionRationale(permission);
         }
         return false;
     }