Added thread annotations to FifoBuffer.

webrtc/base/stream.cc

 /*
  *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 723 matching lines @@
   return ReadOffsetLocked(buffer, bytes, offset, bytes_read);
 }
 
 StreamResult FifoBuffer::WriteOffset(const void* buffer, size_t bytes,
                                      size_t offset, size_t* bytes_written) {
   CritScope cs(&crit_);
   return WriteOffsetLocked(buffer, bytes, offset, bytes_written);
 }
 
 StreamState FifoBuffer::GetState() const {
+  CritScope cs(&crit_);
   return state_;
 }
 
 StreamResult FifoBuffer::Read(void* buffer, size_t bytes,
                               size_t* bytes_read, int* error) {
   CritScope cs(&crit_);
   const bool was_writable = data_length_ < buffer_length_;
   size_t copy = 0;
   StreamResult result = ReadOffsetLocked(buffer, bytes, 0, &copy);
 
@@ skipping 363 matching lines @@
 
   if (data_len) {
     *data_len = 0;
   }
   return SR_SUCCESS;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
 }  // namespace rtc