Add support for capturers to capture VideoFrames.

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

Index: webrtc/sdk/android/src/jni/androidvideotracksource_jni.cc
diff --git a/webrtc/sdk/android/src/jni/androidvideotracksource_jni.cc b/webrtc/sdk/android/src/jni/androidvideotracksource_jni.cc
index 62f5f82574d99a0ff953b5b09121aa5013630b02..56335227f8437b9d146e9cded49633af2e9c17d1 100644
--- a/webrtc/sdk/android/src/jni/androidvideotracksource_jni.cc
+++ b/webrtc/sdk/android/src/jni/androidvideotracksource_jni.cc
@@ -69,6 +69,22 @@ JOW_OBSERVER_METHOD(void, nativeOnTextureFrameCaptured)
       NativeHandleImpl(jni, j_oes_texture_id, j_transform_matrix));
 }
 
+JOW_OBSERVER_METHOD(void, nativeOnFrameCaptured)
+(JNIEnv* jni,
+ jclass,
+ jlong j_source,
+ jint j_width,
+ jint j_height,
+ jint j_rotation,
+ jlong j_timestamp_ns,
+ jobject j_video_frame_buffer) {
+  webrtc::AndroidVideoTrackSource* source =
+      AndroidVideoTrackSourceFromJavaProxy(j_source);
+  source->OnFrameCaptured(jni, j_width, j_height, j_timestamp_ns,
+                          jintToVideoRotation(j_rotation),
+                          j_video_frame_buffer);
+}
+
 JOW_OBSERVER_METHOD(void, nativeCapturerStarted)
 (JNIEnv* jni, jclass, jlong j_source, jboolean j_success) {
   LOG(LS_INFO) << "AndroidVideoTrackSourceObserve_nativeCapturerStarted";