[Android] Add gyp support for multidex.

base/android/java/src/org/chromium/base/BaseChromiumApplication.java

 // Copyright 2013 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.base;
 
 import android.app.Activity;
 import android.app.Application;
 import android.content.Context;
 import android.os.Bundle;
 import android.view.KeyEvent;
 import android.view.Window;
 
+import org.chromium.base.multidex.ChromiumMultiDex;
+
 import java.lang.reflect.InvocationHandler;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.lang.reflect.Proxy;
 
 /**
  * Basic application functionality that should be shared among all browser applications.
  */
 public class BaseChromiumApplication extends Application {
+
+    private static final String TAG = "cr.base";
+
+    @Override
+    protected void attachBaseContext(Context base) {
+        super.attachBaseContext(base);
+        ChromiumMultiDex.install(this);
+    }
+
     /**
      * Interface to be implemented by listeners for window focus events.
      */
     public interface WindowFocusChangedListener {
         /**
          * Called when the window focus changes for {@code activity}.
          * @param activity The {@link Activity} that has a window focus changed event.
          * @param hasFocus Whether or not {@code activity} gained or lost focus.
          */
         public void onWindowFocusChanged(Activity activity, boolean hasFocus);
@@ skipping 128 matching lines @@
 
     /**
      * This must only be called for contexts whose application is a subclass of
      * {@link BaseChromiumApplication}.
      */
     @VisibleForTesting
     public static void initCommandLine(Context context) {
         ((BaseChromiumApplication) context.getApplicationContext()).initCommandLine();
     };
 }