Compose QC intent with FLAG_ACTIVITY_SINGLE_TOP

Since launchMode=singleTop is broken in the framework.

Bug: 16519102
Change-Id: I136821ab9d4493c51f03332cee1e3924a1bd361b

Author: AttwellBrian

core/java/android/provider/ContactsContract.java

@@ -8164,8 +8164,10 @@ public static Intent composeQuickContactsIntent(Context context, Rect target,
                     && !(actualContext instanceof Activity)) {
                 actualContext = ((ContextWrapper) actualContext).getBaseContext();
             }
-            final int intentFlags = (actualContext instanceof Activity)
-                    ? 0 : Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK;
+            final int intentFlags = ((actualContext instanceof Activity)
+                    ? 0 : Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK)
+                    // Workaround for b/16898764. Declaring singleTop in manifest doesn't work.
+                    | Intent.FLAG_ACTIVITY_SINGLE_TOP;
 
             // Launch pivot dialog through intent for now
             final Intent intent = new Intent(ACTION_QUICK_CONTACT).addFlags(intentFlags);