[subresource_filter] Add a subtitle for Android Page Info

chrome/android/java/src/org/chromium/chrome/browser/page_info/PageInfoPopup.java

Index: chrome/android/java/src/org/chromium/chrome/browser/page_info/PageInfoPopup.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/page_info/PageInfoPopup.java b/chrome/android/java/src/org/chromium/chrome/browser/page_info/PageInfoPopup.java
index c44e6f5f28ea0ae296d7ceb0f68e8d713127162d..953715cb5b9df4f612df7313c83e5dc0bcdd929d 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/page_info/PageInfoPopup.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/page_info/PageInfoPopup.java
@@ -621,6 +621,14 @@ public class PageInfoPopup implements OnClickListener {
             }
         }
 
+        // The subresource filter permission requires an additional static subtitle.
+        if (permission.type == ContentSettingsType.CONTENT_SETTINGS_TYPE_SUBRESOURCE_FILTER) {
+            TextView permissionUnavailable =
+                    (TextView) permissionRow.findViewById(R.id.page_info_permission_subtitle);
+            permissionUnavailable.setVisibility(View.VISIBLE);
+            permissionUnavailable.setText(R.string.subresource_filter_permission_title);
+        }
+
         TextView permissionStatus = (TextView) permissionRow.findViewById(
                 R.id.page_info_permission_status);
         SpannableStringBuilder builder = new SpannableStringBuilder();