Adding a WindowAndroidHelper class.

chrome/android/java/src/org/chromium/chrome/browser/TabBase.java

Index: chrome/android/java/src/org/chromium/chrome/browser/TabBase.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/TabBase.java b/chrome/android/java/src/org/chromium/chrome/browser/TabBase.java
index 7a124fbf2cf900a782b03db29a863bb4b04daa9f..7e1fb81fbad42dfd5228e96286282990de47ab9a 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/TabBase.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/TabBase.java
@@ -56,7 +56,7 @@ public class TabBase {
         }
         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;
@@ -131,7 +131,7 @@ public class TabBase {
         }
     }
 
-    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);