Revert 171408

ppapi/cpp/private/flash_file.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 PPAPI_CPP_PRIVATE_FLASH_FILE_H_
 #define PPAPI_CPP_PRIVATE_FLASH_FILE_H_
 
 #include <string>
 #include <vector>
 
 #include "ppapi/c/private/ppb_flash_file.h"
 
 namespace pp {
 
 class FileRef;
 class InstanceHandle;
 
 namespace flash {
 
 // FileModuleLocal -------------------------------------------------------------
 
 class FileModuleLocal {
  public:
   // 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,
                                 int32_t mode);
   static bool RenameFile(const InstanceHandle& instance,
                          const std::string& path_from,
                          const std::string& path_to);
   static bool DeleteFileOrDir(const InstanceHandle& instance,
                               const std::string& path,
                               bool recursive);
   static bool CreateDir(const InstanceHandle& instance,
                         const std::string& path);
   static bool QueryFile(const InstanceHandle& instance,
                         const std::string& path,
                         PP_FileInfo* info);
   // Note that, unlike the C interface, no |FreeDirContents()| is needed.
   struct DirEntry {
     std::string name;
     bool is_dir;
   };
   static bool GetDirContents(const InstanceHandle& instance,
                              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);
 };
 
 // FileFileRef -----------------------------------------------------------------
 
 class FileFileRef {
  public:
   // Returns true if the required interface is available.
   static bool IsAvailable();
 
   // Returns |PP_kInvalidFileHandle| on error.
   static PP_FileHandle OpenFile(const pp::FileRef& resource,
                                 int32_t mode);
   static bool QueryFile(const pp::FileRef& resource,
                         PP_FileInfo* info);
 };
 
 }  // namespace flash
 }  // namespace pp
 
 #endif  // PPAPI_CPP_PRIVATE_FLASH_FILE_H_