Allow overlapping sync and async startup requests

content/public/android/java/src/org/chromium/content/app/ContentMain.java

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.content.app;
 
 import android.content.Context;
 
 import org.chromium.base.JNINamespace;
 
@@ skipping 12 matching lines @@
     /**
      * Initialize application context in native side.
      **/
     public static void initApplicationContext(Context context) {
         nativeInitApplicationContext(context);
     }
 
     /**
      * Start the ContentMainRunner in native side.
      **/
-    public static int start() {
-        return nativeStart();
+    public static void start() {
+        nativeStart();
     }
 
     private static native void nativeInitApplicationContext(Context context);
-    private static native int nativeStart();
+    private static native void nativeStart();
 };