Pepper: Delete FileDownloader in trusted plugin.

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

Index: ppapi/native_client/src/trusted/plugin/pnacl_translate_thread.h
diff --git a/ppapi/native_client/src/trusted/plugin/pnacl_translate_thread.h b/ppapi/native_client/src/trusted/plugin/pnacl_translate_thread.h
index ed0c7d7268fc5ea6b42d693ed27d6c47cad8f879..60c1cbac09dea73da7eba65ec2c680bf05734657 100644
--- a/ppapi/native_client/src/trusted/plugin/pnacl_translate_thread.h
+++ b/ppapi/native_client/src/trusted/plugin/pnacl_translate_thread.h
@@ -61,7 +61,7 @@ class PnaclTranslateThread {
   void AbortSubprocesses();
 
   // Send bitcode bytes to the translator. Called from the main thread.
-  void PutBytes(std::vector<char>* data, int count);
+  void PutBytes(const void* data, int count);
 
   // Notify the translator that the end of the bitcode stream has been reached.
   // Called from the main thread.
@@ -69,6 +69,9 @@ class PnaclTranslateThread {
 
   int64_t GetCompileTime() const { return compile_time_; }
 
+  // Returns true if RunTranslate() has been called, false otherwise.
+  bool started() const { return plugin_ != NULL; }
+
  private:
   // Helper thread entry point for translation. Takes a pointer to
   // PnaclTranslateThread and calls DoTranslate().