H.264 packetization mode 0 (try 2)

webrtc/video/BUILD.gn

Index: webrtc/video/BUILD.gn
diff --git a/webrtc/video/BUILD.gn b/webrtc/video/BUILD.gn
index aa42dc06263c5158014ef4286985fcf1d2050b01..54d936b61a3a0984ae82b9151d5705ff10939d84 100644
--- a/webrtc/video/BUILD.gn
+++ b/webrtc/video/BUILD.gn
@@ -141,6 +141,7 @@ if (rtc_include_tests) {
   # TODO(pbos): Rename test suite.
   rtc_source_set("video_tests") {
     testonly = true
+    defines = []
     sources = [
       "call_stats_unittest.cc",
       "encoder_rtcp_feedback_unittest.cc",
@@ -168,5 +169,8 @@ if (rtc_include_tests) {
       # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
       suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
     }
+    if (rtc_use_h264) {
+      defines += [ "WEBRTC_USE_H264" ]
+    }
   }
 }