This one is a test specific API and can be moved to window.internals.

webkit/glue/webkit_glue.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 WEBKIT_GLUE_WEBKIT_GLUE_H_
 #define WEBKIT_GLUE_WEBKIT_GLUE_H_
 
 #include "base/basictypes.h"
 
 #if defined(OS_WIN)
@@ skipping 38 matching lines @@
 WEBKIT_GLUE_EXPORT string16 DumpDocumentText(WebKit::WebFrame* web_frame);
 
 // Returns the text of the document element and optionally its child frames.
 // If recursive is false, this is equivalent to DumpDocumentText followed by
 // a newline.  If recursive is true, it recursively dumps all frames as text.
 string16 DumpFramesAsText(WebKit::WebFrame* web_frame, bool recursive);
 
 // Returns the renderer's description of its tree (its externalRepresentation).
 WEBKIT_GLUE_EXPORT string16 DumpRenderer(WebKit::WebFrame* web_frame);
 
-// Fill the value of counter in the element specified by the id into
-// counter_value.  Return false when the specified id doesn't exist.
-bool CounterValueForElementById(WebKit::WebFrame* web_frame,
-                                const std::string& id,
-                                string16* counter_value);
-
 // Returns the number of page where the specified element will be put.
 int PageNumberForElementById(WebKit::WebFrame* web_frame,
                              const std::string& id,
                              float page_width_in_pixels,
                              float page_height_in_pixels);
 
 // Returns the number of pages to be printed.
 int NumberOfPages(WebKit::WebFrame* web_frame,
                   float page_width_in_pixels,
                   float page_height_in_pixels);
@@ skipping 85 matching lines @@
 WEBKIT_GLUE_EXPORT bool IsInspectorProtocolVersionSupported(
     const std::string& version);
 
 // Configures the URLRequest according to the referrer policy.
 WEBKIT_GLUE_EXPORT void ConfigureURLRequestForReferrerPolicy(
     net::URLRequest* request, WebKit::WebReferrerPolicy referrer_policy);
 
 }  // namespace webkit_glue
 
 #endif  // WEBKIT_GLUE_WEBKIT_GLUE_H_