Provide an accessibility tree snapshot

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 "base/android/scoped_java_ref.h"
@@ skipping 80 matching lines @@
                                    jobject jobj,
                                    jint level,
                                    jstring message);
 
   jboolean HasAccessedInitialDocument(JNIEnv* env, jobject jobj);
 
   jint GetThemeColor(JNIEnv* env, jobject obj);
 
   void RequestAccessibilitySnapshot(JNIEnv* env,
                                     jobject obj,
-                                    jobject callback);
+                                    jobject callback,
+                                    jfloat y_offset,
+                                    jfloat x_scroll);
 
   void ResumeMediaSession(JNIEnv* env, jobject obj);
   void SuspendMediaSession(JNIEnv* env, jobject obj);
 
  private:
   RenderWidgetHostViewAndroid* GetRenderWidgetHostViewAndroid();
 
   WebContents* web_contents_;
   NavigationControllerAndroid navigation_controller_;
   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_