Expose WindowAndroid from WebContents.

content/browser/web_contents/web_contents_android.h

 // 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.
 
 #ifndef CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_ANDROID_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_ANDROID_H_
 
 #include <jni.h>
 
 #include <memory>
@@ skipping 21 matching lines @@
   static bool Register(JNIEnv* env);
 
   explicit WebContentsAndroid(WebContentsImpl* web_contents);
   ~WebContentsAndroid() override;
 
   WebContentsImpl* web_contents() const { return web_contents_; }
 
   base::android::ScopedJavaLocalRef<jobject> GetJavaObject();
 
   // Methods called from Java
+  base::android::ScopedJavaLocalRef<jobject> GetTopLevelNativeWindow(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& obj);
   base::android::ScopedJavaLocalRef<jstring> GetTitle(
       JNIEnv* env,
       const base::android::JavaParamRef<jobject>& obj) const;
   base::android::ScopedJavaLocalRef<jstring> GetVisibleURL(
       JNIEnv* env,
       const base::android::JavaParamRef<jobject>& obj) const;
 
   bool IsLoading(JNIEnv* env,
                  const base::android::JavaParamRef<jobject>& obj) const;
   bool IsLoadingToDifferentDocument(
@@ skipping 162 matching lines @@
   base::android::ScopedJavaGlobalRef<jobject> obj_;
 
   base::WeakPtrFactory<WebContentsAndroid> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentsAndroid);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_ANDROID_H_