Use incognito split for ChromeVox and TTS in Guest mode

webkit/browser/fileapi/file_system_context.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_BROWSER_FILEAPI_FILE_SYSTEM_CONTEXT_H_
 #define WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_CONTEXT_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 224 matching lines @@
   const base::FilePath& partition_path() const { return partition_path_; }
 
   // Same as |CrackFileSystemURL|, but cracks FileSystemURL created from |url|.
   FileSystemURL CrackURL(const GURL& url) const;
   // Same as |CrackFileSystemURL|, but cracks FileSystemURL created from method
   // arguments.
   FileSystemURL CreateCrackedFileSystemURL(const GURL& origin,
                                            FileSystemType type,
                                            const base::FilePath& path) const;
 
-#if defined(OS_CHROMEOS) && defined(GOOGLE_CHROME_BUILD)
+#if defined(OS_CHROMEOS)
   // Used only on ChromeOS for now.
   void EnableTemporaryFileSystemInIncognito();
 #endif
 
   SandboxFileSystemBackendDelegate* sandbox_delegate() {
     return sandbox_delegate_.get();
   }
 
   // Returns true if the requested url is ok to be served.
   // (E.g. this returns false if the context is created for incognito mode)
@@ skipping 115 matching lines @@
 
 struct DefaultContextDeleter {
   static void Destruct(const FileSystemContext* context) {
     context->DeleteOnCorrectThread();
   }
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_CONTEXT_H_