Pepper: Delete FileDownloader in trusted plugin.

ppapi/native_client/src/trusted/plugin/temporary_file.h

Index: ppapi/native_client/src/trusted/plugin/temporary_file.h
diff --git a/ppapi/native_client/src/trusted/plugin/temporary_file.h b/ppapi/native_client/src/trusted/plugin/temporary_file.h
index 4bc8f7140e389054d1d6e7d84408c0a5e342acbb..a58879bb578b11f5f3cc2cd764a3f66485eb8a42 100644
--- a/ppapi/native_client/src/trusted/plugin/temporary_file.h
+++ b/ppapi/native_client/src/trusted/plugin/temporary_file.h
@@ -36,7 +36,7 @@ class Plugin;
 class TempFile {
  public:
   // Create a TempFile.
-  explicit TempFile(Plugin* plugin);
+  TempFile(Plugin* plugin, PP_FileHandle handle);
   ~TempFile();
 
   // Opens a temporary file object and descriptor wrapper referring to the file.
@@ -55,9 +55,6 @@ class TempFile {
   // and all wrappers.
   PP_FileHandle TakeFileHandle();
 
-  // Used by GetNexeFd() to set the underlying internal handle.
-  PP_FileHandle* internal_handle() { return &internal_handle_; }
-
  private:
   NACL_DISALLOW_COPY_AND_ASSIGN(TempFile);