Adding a WindowAndroidHelper class.

chrome/android/java/src/org/chromium/chrome/browser/TabBase.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.chrome.browser;
 
 import android.content.Context;
 import android.text.TextUtils;
 
 import org.chromium.chrome.browser.ChromeWebContentsDelegateAndroid;
@@ skipping 38 matching lines @@
     public TabBase(Context context, int nativeWebContentsPtr,
             NativeWindow window, ChromeWebContentsDelegateAndroid delegate) {
         mWindow = window;
 
         // Build the WebContents and the ContentView/ContentViewCore
         if (nativeWebContentsPtr == 0) {
             nativeWebContentsPtr = ContentViewUtil.createNativeWebContents(false);
         }
         mContentView = ContentView.newInstance(context, nativeWebContentsPtr, mWindow,
                 ContentView.PERSONALITY_CHROME);
-        mNativeTabBaseAndroidImpl = nativeInit(nativeWebContentsPtr);
+        mNativeTabBaseAndroidImpl = nativeInit(nativeWebContentsPtr, window.getNativePointer());
 
         // Build the WebContentsDelegate
         mWebContentsDelegate = delegate == null ? new ChromeWebContentsDelegateAndroid() : delegate;
         nativeInitWebContentsDelegate(mNativeTabBaseAndroidImpl, mWebContentsDelegate);
 
         // To be called after everything is initialized.
         mCleanupReference = new CleanupReference(this,
                 new DestroyRunnable(mNativeTabBaseAndroidImpl));
     }
 
@@ skipping 54 matching lines @@
         private final int mNativeTabBaseAndroidImpl;
         private DestroyRunnable(int nativeTabBaseAndroidImpl) {
             mNativeTabBaseAndroidImpl = nativeTabBaseAndroidImpl;
         }
         @Override
         public void run() {
             nativeDestroy(mNativeTabBaseAndroidImpl);
         }
     }
 
-    private native int nativeInit(int webContentsPtr);
+    private native int nativeInit(int webContentsPtr, int windowAndroidPtr);
     private static native void nativeDestroy(int nativeTabBaseAndroidImpl);
     private native void nativeInitWebContentsDelegate(int nativeTabBaseAndroidImpl,
             ChromeWebContentsDelegateAndroid chromeWebContentsDelegateAndroid);
     private native String nativeFixupUrl(int nativeTabBaseAndroidImpl, String url);
 }