Reland of Add a flags field to video timing extension.

webrtc/sdk/android/src/jni/androidmediaencoder_jni.cc

Index: webrtc/sdk/android/src/jni/androidmediaencoder_jni.cc
diff --git a/webrtc/sdk/android/src/jni/androidmediaencoder_jni.cc b/webrtc/sdk/android/src/jni/androidmediaencoder_jni.cc
index 8181e3dfbaf8ca22303d93bf97610bff55e29b7f..efbf2c23f2f537b7f4b7a9ef3a756855a803e8fb 100644
--- a/webrtc/sdk/android/src/jni/androidmediaencoder_jni.cc
+++ b/webrtc/sdk/android/src/jni/androidmediaencoder_jni.cc
@@ -1162,7 +1162,7 @@ bool MediaCodecVideoEncoder::DeliverPendingOutputs(JNIEnv* jni) {
           (codec_mode_ == webrtc::VideoCodecMode::kScreensharing)
               ? webrtc::VideoContentType::SCREENSHARE
               : webrtc::VideoContentType::UNSPECIFIED;
-      image->timing_.is_timing_frame = false;
+      image->timing_.flags = webrtc::TimingFrameFlags::kInvalid;
       image->_frameType =
           (key_frame ? webrtc::kVideoFrameKey : webrtc::kVideoFrameDelta);
       image->_completeFrame = true;