Do not return FileSystem contents if the profile is in incognito 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 209 matching lines @@
 
 #if defined(OS_CHROMEOS) && defined(GOOGLE_CHROME_BUILD)
   // 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)
+  bool CanServeURLRequest(const FileSystemURL& url) const;
+
  private:
   typedef std::map<FileSystemType, FileSystemBackend*>
       FileSystemBackendMap;
 
   // For CreateFileSystemOperation.
   friend class FileSystemOperationRunner;
 
   // For sandbox_backend().
   friend class SandboxFileSystemTestHelper;
 
@@ skipping 61 matching lines @@
   // external mount points).
   scoped_refptr<ExternalMountPoints> external_mount_points_;
 
   // MountPoints used to crack FileSystemURLs. The MountPoints are ordered
   // in order they should try to crack a FileSystemURL.
   std::vector<MountPoints*> url_crackers_;
 
   // The base path of the storage partition for this context.
   const base::FilePath partition_path_;
 
+  bool is_incognito_;
+
   scoped_ptr<FileSystemOperationRunner> operation_runner_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(FileSystemContext);
 };
 
 struct DefaultContextDeleter {
   static void Destruct(const FileSystemContext* context) {
     context->DeleteOnCorrectThread();
   }
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_CONTEXT_H_