Implement media path filter

chrome/browser/intents/device_attached_intent_source.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 "chrome/browser/intents/device_attached_intent_source.h"
 
+#include <string>
+
 #include "base/file_path.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "content/public/browser/web_intents_dispatcher.h"
 #include "content/public/browser/web_contents_delegate.h"
 #include "webkit/fileapi/file_system_types.h"
 #include "webkit/fileapi/isolated_context.h"
 #include "webkit/glue/web_intent_data.h"
 
@@ skipping 30 matching lines @@
   const FilePath device_path(location);
   if (!device_path.IsAbsolute() || device_path.ReferencesParent())
     return;
 
   std::string device_name;
 
   // Register device path as an isolated file system.
   // TODO(kinuko, kmadhusu): Use a different file system type for MTP.
   const std::string filesystem_id =
       fileapi::IsolatedContext::GetInstance()->RegisterFileSystemForPath(
-          fileapi::kFileSystemTypeIsolated, device_path, &device_name);
+          fileapi::kFileSystemTypeNativeMedia, device_path, &device_name);
 
   CHECK(!filesystem_id.empty());
   webkit_glue::WebIntentData intent(
       ASCIIToUTF16("chrome-extension://attach"),
       ASCIIToUTF16("chrome-extension://filesystem"),
       device_name,
       filesystem_id);
 
   delegate_->WebIntentDispatch(NULL  /* no WebContents */,
                                content::WebIntentsDispatcher::Create(intent));
 }