Move H264BitstreamParser to video_coding.

Moves parser, used in video_coding/ from rtp_rtcp where it is unused.

BUG=webrtc:5678
R=asapersson@webrtc.org
TBR=glaznev@webrt.org

Review URL: https://codereview.webrtc.org/2007553003 .

Cr-Commit-Position: refs/heads/master@{#12866}
diff --git a/webrtc/api/java/jni/androidmediaencoder_jni.cc b/webrtc/api/java/jni/androidmediaencoder_jni.cc
index 8fbd594..da0f2e6 100644
--- a/webrtc/api/java/jni/androidmediaencoder_jni.cc
+++ b/webrtc/api/java/jni/androidmediaencoder_jni.cc
@@ -29,8 +29,8 @@
 #include "webrtc/base/thread_checker.h"
 #include "webrtc/base/timeutils.h"
 #include "webrtc/common_types.h"
-#include "webrtc/modules/rtp_rtcp/source/h264_bitstream_parser.h"
 #include "webrtc/modules/video_coding/include/video_codec_interface.h"
+#include "webrtc/modules/video_coding/utility/h264_bitstream_parser.h"
 #include "webrtc/modules/video_coding/utility/quality_scaler.h"
 #include "webrtc/modules/video_coding/utility/vp8_header_parser.h"
 #include "webrtc/system_wrappers/include/field_trial.h"