Implementation of Smart GO NEXT feature in Android Chrome

content/browser/web_contents/web_contents_impl.h

 // 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.
 
 #ifndef CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 652 matching lines @@
   // Unsets the currently showing interstitial.
   void DetachInterstitialPage() override;
 
   // Changes the IsLoading state and notifies the delegate as needed.
   // |details| is used to provide details on the load that just finished
   // (but can be null if not applicable).
   void SetIsLoading(bool is_loading,
                     bool to_different_document,
                     LoadNotificationDetails* details) override;
 
+  // Called to advance the focus to next form control element in
+  // forward/backward direction from current element.
+  void AdvanceFocusToNextFormControl(bool forward) override;
+

[Avi (use Gerrit), 2015/04/17 16:26:38]

No.

In web_contents.h, you have it with its friends, located right after Unselect.
Put this ALSO right after Unselect, and in the .cc file, put this ALSO right
after Unselect.

Also, put the comment in web_contents.h.

[AKV, 2015/04/17 16:40:37]

Done. Thanks.

   typedef base::Callback<void(WebContents*)> CreatedCallback;
 
   // Requests the renderer to move the selection extent to a new position.
   void MoveRangeSelectionExtent(const gfx::Point& extent);
 
   // Requests the renderer to select the region between two points in the
   // currently focused frame.
   void SelectRange(const gfx::Point& base, const gfx::Point& extent);
 
   // Notifies the main frame that it can continue navigation (if it was deferred
@@ skipping 605 matching lines @@
   // Adds/removes a callback called on creation of each new WebContents.
   static void AddCreatedCallbackForTesting(const CreatedCallback& callback);
   static void RemoveCreatedCallbackForTesting(const CreatedCallback& callback);
 
   DISALLOW_COPY_AND_ASSIGN(FriendZone);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_