Simplify Pnacl translation thread code

ppapi/native_client/src/trusted/plugin/pnacl_streaming_translate_thread.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 NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_PNACL_STREAMING_TRANSLATE_THREAD_H_
-#define NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_PNACL_STREAMING_TRANSLATE_THREAD_H_
-
-#include <deque>
-#include <vector>
-
-#include "native_client/src/include/nacl_macros.h"
-#include "native_client/src/shared/platform/nacl_sync_checked.h"
-#include "native_client/src/trusted/plugin/pnacl_translate_thread.h"
-
-namespace plugin {
-
-class PnaclStreamingTranslateThread : public PnaclTranslateThread {
- public:
-  PnaclStreamingTranslateThread();
-  virtual ~PnaclStreamingTranslateThread();
-
-  // Start the translation process. It will continue to run and consume data
-  // as it is passed in with PutBytes.
-  virtual void RunTranslate(const pp::CompletionCallback& finish_callback,
-                            const Manifest* manifest,
-                            const Manifest* ld_manifest,
-                            TempFile* obj_file,
-                            LocalTempFile* nexe_file,
-                            ErrorInfo* error_info,
-                            PnaclResources* resources,
-                            Plugin* plugin);
-
-  // Kill the translation and/or linking processes.
-  virtual void SetSubprocessesShouldDie();
-
-  // Send bitcode bytes to the translator. Called from the main thread.
-  void PutBytes(std::vector<char>* data, int count);
-
- private:
-  NACL_DISALLOW_COPY_AND_ASSIGN(PnaclStreamingTranslateThread);
-  // Run the streaming translation. Call on the translation/SRPC thread.
-  void DoTranslate();
-
-  bool done_;
-  // Condition variable to synchronize communication with the SRPC thread.
-  // SRPC thread waits on this condvar if data_buffers_ is empty (meaning
-  // there is no bitcode to send to the translator), and the main thread
-  // appends to data_buffers_ and signals it when it receives bitcode.
-  struct NaClCondVar buffer_cond_;
-  // Mutex for buffer_cond_.
-  struct NaClMutex cond_mu_;
-  // Data buffers from FileDownloader are enqueued here to pass from the
-  // main thread to the SRPC thread. Protected by cond_mu_
-  std::deque<std::vector<char> > data_buffers_;
-};
-
-} // namespace plugin
-#endif // NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_PNACL_STREAMING_TRANSLATE_THREAD_H_