Plugin may have Java components. So always refresh
if the package has been changed.

Fix http://b/issue?id=2718983
diff --git a/src/com/android/browser/BrowserActivity.java b/src/com/android/browser/BrowserActivity.java
index b46d020..03bb9df 100644
--- a/src/com/android/browser/BrowserActivity.java
+++ b/src/com/android/browser/BrowserActivity.java
@@ -325,9 +325,7 @@
                     }
                     if (permissionOk) {
                         PluginManager.getInstance(BrowserActivity.this)
-                                .refreshPlugins(
-                                        Intent.ACTION_PACKAGE_ADDED
-                                                .equals(action));
+                                .refreshPlugins(true);
                     }
                 }
             }