Refactored the PPB_Flash_File_ModuleLocal/FileRef to the new ppapi resource model

ppapi/cpp/private/flash_file.h

Index: ppapi/cpp/private/flash_file.h
diff --git a/ppapi/cpp/private/flash_file.h b/ppapi/cpp/private/flash_file.h
index a7c655a29c39ddbf169b4fd021542f838ee80324..04ab195eeb32168f4e55edd4cb3067b07eb2b14e 100644
--- a/ppapi/cpp/private/flash_file.h
+++ b/ppapi/cpp/private/flash_file.h
@@ -24,9 +24,6 @@ class FileModuleLocal {
   // Returns true if the required interface is available.
   static bool IsAvailable();
 
-  static bool CreateThreadAdapterForInstance(const InstanceHandle& instance);
-  static void ClearThreadAdapterForInstance(const InstanceHandle& instance);
-
   // Returns |PP_kInvalidFileHandle| on error.
   static PP_FileHandle OpenFile(const InstanceHandle& instance,
                                 const std::string& path,
@@ -51,9 +48,6 @@ class FileModuleLocal {
                              const std::string& path,
                              std::vector<DirEntry>* dir_contents);
 
-  // Returns true if |CreateTemporaryFile()| is supported.
-  // TODO(viettrungluu): Remove this sometime after M21 ships to Stable?
-  static bool IsCreateTemporaryFileAvailable();
   // Returns |PP_kInvalidFileHandle| on error.
   static PP_FileHandle CreateTemporaryFile(const InstanceHandle& instance);
 };