Extract PepperFileSystemTypeToFileSystemType() from ppapi.

ppapi/shared_impl/host_resource.h

 // Copyright (c) 2011 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 PPAPI_SHARED_IMPL_HOST_RESOURCE_H_
 #define PPAPI_SHARED_IMPL_HOST_RESOURCE_H_
 
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/shared_impl/ppapi_shared_export.h"
 
 namespace ppapi {
 
 // For "old" style resources, PP_Resource values differ on the host and plugin
 // side. Implementations of those should be careful to use HostResource to
 // prevent confusion. "New" style resources use the same PP_Resource value on
 // the host and plugin sides, and should not use HostResource.
 //
 // Old style resources match these file specs:
 //   Proxy: ppapi/proxy/ppb_*_proxy.*
-//   Host: webkit/plugins/ppapi/*
+//   Host: content/ppapi_plugin/*
 // New style resources match these file specs:
 //   Proxy: ppapi/proxy/*_resource.*
 //   Browser: (content|chrome)/browser/renderer_host/pepper/pepper_*_host.*
 //   Renderer: (content|chrome)/renderer/pepper/pepper_*_host.*
 //
 //
 // Represents a PP_Resource sent over the wire. This just wraps a PP_Resource.
 // The point is to prevent mistakes where the wrong resource value is sent.
 // Resource values are remapped in the plugin so that it can talk to multiple
 // hosts. If all values were PP_Resource, it would be easy to forget to do
@@ skipping 33 matching lines @@
   }
 
  private:
   PP_Instance instance_;
   PP_Resource host_resource_;
 };
 
 }  // namespace ppapi
 
 #endif  // PPAPI_SHARED_IMPL_HOST_RESOURCE_H_