Added constructor to ShortcutKey.

Change-Id: Ic7769af89aa118802e666b92c662f5e1741441ab

src/com/android/launcher3/shortcuts/ShortcutKey.java

@@ -1,6 +1,7 @@
 package com.android.launcher3.shortcuts;
 
 import android.content.ComponentName;
+import android.content.Context;
 import android.content.Intent;
 import android.os.UserHandle;
 
@@ -17,6 +18,10 @@ public class ShortcutKey extends ComponentKey {
         super(new ComponentName(packageName, id), user);
     }
 
+    public ShortcutKey(Context context, String componentKeyStr) {
+        super(context, componentKeyStr);
+    }
+
     public String getId() {
         return componentName.getClassName();
     }