Remove VCM_*_PAYLOAD_TYPE constants.

These payload types aren't directly connected to any payload type, and
the payload type still has to be negotiated externally. As such these
constants are just a source of confusion.

BUG=
R=stefan@webrtc.org

Review URL: https://codereview.webrtc.org/1215603003

Cr-Commit-Position: refs/heads/master@{#9546}
diff --git a/webrtc/modules/video_coding/main/interface/video_coding_defines.h b/webrtc/modules/video_coding/main/interface/video_coding_defines.h
index 2a5fc0a..259e75e 100644
--- a/webrtc/modules/video_coding/main/interface/video_coding_defines.h
+++ b/webrtc/modules/video_coding/main/interface/video_coding_defines.h
@@ -36,13 +36,6 @@
 #define VCM_ERROR_REQUEST_SLI   -12
 #define VCM_NOT_IMPLEMENTED     -20
 
-#define VCM_RED_PAYLOAD_TYPE        96
-#define VCM_ULPFEC_PAYLOAD_TYPE     97
-#define VCM_VP8_PAYLOAD_TYPE       100
-#define VCM_VP9_PAYLOAD_TYPE       101
-#define VCM_I420_PAYLOAD_TYPE      124
-#define VCM_H264_PAYLOAD_TYPE      127
-
 enum { kDefaultStartBitrateKbps = 300 };
 
 enum VCMVideoProtection {
diff --git a/webrtc/modules/video_coding/main/source/codec_database.cc b/webrtc/modules/video_coding/main/source/codec_database.cc
index 49a018b..5f89936 100644
--- a/webrtc/modules/video_coding/main/source/codec_database.cc
+++ b/webrtc/modules/video_coding/main/source/codec_database.cc
@@ -31,6 +31,7 @@
 
 namespace {
 const size_t kDefaultPayloadSize = 1440;
+const uint8_t kDefaultPayloadType = 100;
 }
 
 namespace webrtc {
@@ -140,7 +141,7 @@
       strncpy(settings->plName, "VP8", 4);
       settings->codecType = kVideoCodecVP8;
       // 96 to 127 dynamic payload types for video codecs.
-      settings->plType = VCM_VP8_PAYLOAD_TYPE;
+      settings->plType = kDefaultPayloadType;
       settings->startBitrate = kDefaultStartBitrateKbps;
       settings->minBitrate = VCM_MIN_BITRATE;
       settings->maxBitrate = 0;
@@ -158,7 +159,7 @@
       strncpy(settings->plName, "VP9", 4);
       settings->codecType = kVideoCodecVP9;
       // 96 to 127 dynamic payload types for video codecs.
-      settings->plType = VCM_VP9_PAYLOAD_TYPE;
+      settings->plType = kDefaultPayloadType;
       settings->startBitrate = 100;
       settings->minBitrate = VCM_MIN_BITRATE;
       settings->maxBitrate = 0;
@@ -176,7 +177,7 @@
       strncpy(settings->plName, "H264", 5);
       settings->codecType = kVideoCodecH264;
       // 96 to 127 dynamic payload types for video codecs.
-      settings->plType = VCM_H264_PAYLOAD_TYPE;
+      settings->plType = kDefaultPayloadType;
       settings->startBitrate = kDefaultStartBitrateKbps;
       settings->minBitrate = VCM_MIN_BITRATE;
       settings->maxBitrate = 0;
@@ -194,7 +195,7 @@
       strncpy(settings->plName, "I420", 5);
       settings->codecType = kVideoCodecI420;
       // 96 to 127 dynamic payload types for video codecs.
-      settings->plType = VCM_I420_PAYLOAD_TYPE;
+      settings->plType = kDefaultPayloadType;
       // Bitrate needed for this size and framerate.
       settings->startBitrate = 3 * VCM_DEFAULT_CODEC_WIDTH *
                                VCM_DEFAULT_CODEC_HEIGHT * 8 *
diff --git a/webrtc/modules/video_coding/main/test/video_rtp_play.cc b/webrtc/modules/video_coding/main/test/video_rtp_play.cc
index 1cf27c7..c1bc02f 100644
--- a/webrtc/modules/video_coding/main/test/video_rtp_play.cc
+++ b/webrtc/modules/video_coding/main/test/video_rtp_play.cc
@@ -24,7 +24,9 @@
 const uint32_t kConfigRenderDelayMs = 0;
 const uint32_t kConfigMinPlayoutDelayMs = 0;
 const int64_t kConfigMaxRuntimeMs = -1;
-
+const uint8_t kDefaultUlpFecPayloadType = 97;
+const uint8_t kDefaultRedPayloadType = 96;
+const uint8_t kDefaultVp8PayloadType = 100;
 }  // namespace
 
 int RtpPlay(const CmdArgs& args) {
@@ -35,11 +37,11 @@
 
   webrtc::rtpplayer::PayloadTypes payload_types;
   payload_types.push_back(webrtc::rtpplayer::PayloadCodecTuple(
-      VCM_ULPFEC_PAYLOAD_TYPE, "ULPFEC", webrtc::kVideoCodecULPFEC));
+      kDefaultUlpFecPayloadType, "ULPFEC", webrtc::kVideoCodecULPFEC));
   payload_types.push_back(webrtc::rtpplayer::PayloadCodecTuple(
-      VCM_RED_PAYLOAD_TYPE, "RED", webrtc::kVideoCodecRED));
+      kDefaultRedPayloadType, "RED", webrtc::kVideoCodecRED));
   payload_types.push_back(webrtc::rtpplayer::PayloadCodecTuple(
-      VCM_VP8_PAYLOAD_TYPE, "VP8", webrtc::kVideoCodecVP8));
+      kDefaultVp8PayloadType, "VP8", webrtc::kVideoCodecVP8));
 
   std::string output_file = args.outputFile;
   if (output_file == "") {
diff --git a/webrtc/video/end_to_end_tests.cc b/webrtc/video/end_to_end_tests.cc
index 50a33cb..dd9650d 100644
--- a/webrtc/video/end_to_end_tests.cc
+++ b/webrtc/video/end_to_end_tests.cc
@@ -252,7 +252,7 @@
                        VideoEncoderConfig* encoder_config) override {
       send_config->encoder_settings.encoder = encoder_.get();
       send_config->encoder_settings.payload_name = "VP9";
-      send_config->encoder_settings.payload_type = VCM_VP9_PAYLOAD_TYPE;
+      send_config->encoder_settings.payload_type = 124;
       encoder_config->streams[0].min_bitrate_bps = 50000;
       encoder_config->streams[0].target_bitrate_bps =
           encoder_config->streams[0].max_bitrate_bps = 2000000;