Add content type information to encoded images and corresponding rtp extension header

webrtc/test/frame_generator_capturer.cc

Index: webrtc/test/frame_generator_capturer.cc
diff --git a/webrtc/test/frame_generator_capturer.cc b/webrtc/test/frame_generator_capturer.cc
index 9e74e40d18bf072b85ab23c2283ded7a2660bc6c..505f5c9c051d3fb2670b69ad543816829e870507 100644
--- a/webrtc/test/frame_generator_capturer.cc
+++ b/webrtc/test/frame_generator_capturer.cc
@@ -126,6 +126,11 @@ void FrameGeneratorCapturer::SetFakeRotation(VideoRotation rotation) {
   fake_rotation_ = rotation;
 }
 
+void FrameGeneratorCapturer::SetFakeContentType(VideoContentType content_type) {
+  rtc::CritScope cs(&lock_);
+  fake_video_content_type_ = content_type;
+}
+
 bool FrameGeneratorCapturer::Init() {
   // This check is added because frame_generator_ might be file based and should
   // not crash because a file moved.
@@ -147,6 +152,7 @@ void FrameGeneratorCapturer::InsertFrame() {
       VideoFrame* frame = frame_generator_->NextFrame();
       frame->set_ntp_time_ms(clock_->CurrentNtpInMilliseconds());
       frame->set_rotation(fake_rotation_);
+      frame->set_content_type(fake_video_content_type_);
       if (first_frame_capture_time_ == -1) {
         first_frame_capture_time_ = frame->ntp_time_ms();
       }