Add content browser test for <optgroup> with 'display: none'

content/public/test/render_view_test.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_PUBLIC_TEST_RENDER_VIEW_TEST_H_
 #define CONTENT_PUBLIC_TEST_RENDER_VIEW_TEST_H_
 
 #include <string>
 
 #include "base/command_line.h"
@@ skipping 55 matching lines @@
   // is a NULL-terminated UTF-8 string.
   void ExecuteJavaScript(const char* js);
 
   // Executes the given JavaScript and sets the int value it evaluates to in
   // |result|.
   // Returns true if the JavaScript was evaluated correctly to an int value,
   // false otherwise.
   bool ExecuteJavaScriptAndReturnIntValue(const base::string16& script,
                                           int* result);
 
+  // Executes the given JavaScript and sets the string value it evaluates to in
+  // |result|.
+  // Returns true if the JavaScript was evaluated correctly to an string value,
+  // false otherwise.
+  bool ExecuteJavaScriptAndReturnStringValue(const base::string16& script,
+                                          std::string& result);
+
   // Loads the given HTML into the main frame as a data: URL and blocks until
   // the navigation is committed.
   void LoadHTML(const char* html);
 
   // Returns the current PageState.
   PageState GetCurrentPageState();
 
   // Navigates the main frame back or forward in session history and commits.
   // The caller must capture a PageState for the target page.
   void GoBack(const PageState& state);
@@ skipping 71 matching lines @@
   scoped_ptr<base::mac::ScopedNSAutoreleasePool> autorelease_pool_;
 #endif
 
  private:
   void GoToOffset(int offset, const PageState& state);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_TEST_RENDER_VIEW_TEST_H_