Remove more extras during notification lightening.

Basically anything Parcelable needs to go since it might be
quite large. Note that this includes additional extras such as
those contributed by WearableExtender.

Bug: 26038546
Change-Id: I85a20173158717c866a36dacd6a04391c2a33376
diff --git a/core/java/android/app/Notification.java b/core/java/android/app/Notification.java
index 6c0c3e8..9d5e2f54 100644
--- a/core/java/android/app/Notification.java
+++ b/core/java/android/app/Notification.java
@@ -46,6 +46,7 @@
 import android.os.UserHandle;
 import android.text.TextUtils;
 import android.util.Log;
+import android.util.SparseArray;
 import android.util.TypedValue;
 import android.view.Gravity;
 import android.view.View;
@@ -63,6 +64,7 @@
 import java.util.Collections;
 import java.util.List;
 import java.util.Objects;
+import java.util.Set;
 
 /**
  * A class that represents how a persistent notification is to be presented to
@@ -1692,11 +1694,21 @@
         bigContentView = null;
         headsUpContentView = null;
         mLargeIcon = null;
-        if (extras != null) {
-            extras.remove(Notification.EXTRA_LARGE_ICON);
-            extras.remove(Notification.EXTRA_LARGE_ICON_BIG);
-            extras.remove(Notification.EXTRA_PICTURE);
-            extras.remove(Notification.EXTRA_BIG_TEXT);
+        if (extras != null && !extras.isEmpty()) {
+            final Set<String> keyset = extras.keySet();
+            final int N = keyset.size();
+            final String[] keys = keyset.toArray(new String[N]);
+            for (int i=0; i<N; i++) {
+                final String key = keys[i];
+                final Object obj = extras.get(key);
+                if (obj != null &&
+                    (  obj instanceof Parcelable
+                    || obj instanceof Parcelable[]
+                    || obj instanceof SparseArray
+                    || obj instanceof ArrayList)) {
+                    extras.remove(key);
+                }
+            }
         }
     }