Prevent OOB reads for truncated H264 STAP-A packets.

webrtc/modules/video_coding/main/source/session_info.h

Index: webrtc/modules/video_coding/main/source/session_info.h
diff --git a/webrtc/modules/video_coding/main/source/session_info.h b/webrtc/modules/video_coding/main/source/session_info.h
index 21f6c437e3a7ea5e1744d94fe41ebf485cc55b38..384e51e5bb051322d744702df7487f01e6c54d3d 100644
--- a/webrtc/modules/video_coding/main/source/session_info.h
+++ b/webrtc/modules/video_coding/main/source/session_info.h
@@ -114,8 +114,10 @@ class VCMSessionInfo {
   PacketIterator FindPartitionEnd(PacketIterator it) const;
   static bool InSequence(const PacketIterator& it,
                          const PacketIterator& prev_it);
-  size_t InsertBuffer(uint8_t* frame_buffer,
-                      PacketIterator packetIterator);
+  bool InsertBuffer(uint8_t* frame_buffer,
+                    size_t* inserted_length,
+                    PacketIterator packetIterator);
+
   size_t Insert(const uint8_t* buffer,
                 size_t length,
                 bool insert_start_code,