Fix code style and gyp files in cast to build cast_unittest

media/cast/congestion_control/congestion_control.cc

Index: media/cast/congestion_control/congestion_control.cc
diff --git a/media/cast/congestion_control/congestion_control.cc b/media/cast/congestion_control/congestion_control.cc
index f8ca98c2c9a6ac3bcd244b3620a2c159380f5112..791842a10332892ecc55c1e5d5efda5cb176c7f2 100644
--- a/media/cast/congestion_control/congestion_control.cc
+++ b/media/cast/congestion_control/congestion_control.cc
@@ -37,6 +37,9 @@ CongestionControl::CongestionControl(float congestion_control_back_off,
   DCHECK_GE(start_bitrate, min_bitrate_configured) << "Invalid config";
 }
 
+CongestionControl::~CongestionControl() {
+}
+
 bool CongestionControl::OnAck(base::TimeDelta rtt, uint32* new_bitrate) {
   base::TimeTicks now = clock_->NowTicks();