Coverity: Initialize member variables.

media/audio/async_socket_io_handler_posix.cc

Index: media/audio/async_socket_io_handler_posix.cc
diff --git a/media/audio/async_socket_io_handler_posix.cc b/media/audio/async_socket_io_handler_posix.cc
index c4d3169640f2a77ebc4c16011c5afa5778704b2f..dc881f63e5efd2259c14d86c12a1948ed3808f4e 100644
--- a/media/audio/async_socket_io_handler_posix.cc
+++ b/media/audio/async_socket_io_handler_posix.cc
@@ -11,7 +11,10 @@ namespace media {
 
 AsyncSocketIoHandler::AsyncSocketIoHandler()
     : socket_(base::SyncSocket::kInvalidHandle),
-      is_watching_(false) {}
+      pending_buffer_(NULL),
+      pending_buffer_len_(0),
+      is_watching_(false) {
+}
 
 AsyncSocketIoHandler::~AsyncSocketIoHandler() {
   DCHECK(CalledOnValidThread());