Use incognito split for ChromeVox and TTS in Guest mode

webkit/browser/fileapi/file_system_context.cc

 // 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.
 
 #include "webkit/browser/fileapi/file_system_context.h"
 
 #include "base/bind.h"
 #include "base/single_thread_task_runner.h"
 #include "base/stl_util.h"
 #include "base/task_runner_util.h"
@@ skipping 400 matching lines @@
   return CrackFileSystemURL(FileSystemURL(url));
 }
 
 FileSystemURL FileSystemContext::CreateCrackedFileSystemURL(
     const GURL& origin,
     FileSystemType type,
     const base::FilePath& path) const {
   return CrackFileSystemURL(FileSystemURL(origin, type, path));
 }
 
-#if defined(OS_CHROMEOS) && defined(GOOGLE_CHROME_BUILD)
+#if defined(OS_CHROMEOS)
 void FileSystemContext::EnableTemporaryFileSystemInIncognito() {
   sandbox_backend_->set_enable_temporary_file_system_in_incognito(true);
 }
 #endif
 
 bool FileSystemContext::CanServeURLRequest(const FileSystemURL& url) const {
   // We never support accessing files in isolated filesystems via an URL.
   if (url.mount_type() == kFileSystemTypeIsolated)
     return false;
-#if defined(OS_CHROMEOS) && defined(GOOGLE_CHROME_BUILD)
+#if defined(OS_CHROMEOS)
   if (url.type() == kFileSystemTypeTemporary &&
       sandbox_backend_->enable_temporary_file_system_in_incognito()) {
     return true;
   }
 #endif
   return !is_incognito_ || !FileSystemContext::IsSandboxFileSystem(url.type());
 }
 
 void FileSystemContext::OpenPluginPrivateFileSystem(
     const GURL& origin_url,
@@ skipping 122 matching lines @@
   } else if (parent != child) {
     bool result = parent.AppendRelativePath(child, &path);
     DCHECK(result);
   }
 
   operation_runner()->GetMetadata(
       url, base::Bind(&DidGetMetadataForResolveURL, path, callback, info));
 }
 
 }  // namespace fileapi