Implement AndroidVideoBuffer::ToI420.

webrtc/sdk/android/src/jni/native_handle_impl.h

Index: webrtc/sdk/android/src/jni/native_handle_impl.h
diff --git a/webrtc/sdk/android/src/jni/native_handle_impl.h b/webrtc/sdk/android/src/jni/native_handle_impl.h
index 560a84255cf2540b79c2ca24e74911a7d4aff4a8..9c4eb859bfc64b1e07a4f3ce7bf5465f1b753bc3 100644
--- a/webrtc/sdk/android/src/jni/native_handle_impl.h
+++ b/webrtc/sdk/android/src/jni/native_handle_impl.h
@@ -104,7 +104,6 @@ class AndroidTextureBuffer : public AndroidVideoFrameBuffer {
 class AndroidVideoBuffer : public AndroidVideoFrameBuffer {
  public:
   AndroidVideoBuffer(JNIEnv* jni,
-                     jmethodID j_retain_id,
                      jmethodID j_release_id,
                      jmethodID j_get_width_id,
                      jmethodID j_get_height_id,
@@ -116,11 +115,15 @@ class AndroidVideoBuffer : public AndroidVideoFrameBuffer {
   // Returns an instance of VideoRenderer.I420Frame (deprecated)
   jobject ToJavaI420Frame(JNIEnv* jni, int rotation);
 
- private:
   Type type() const override;
   int width() const override;
   int height() const override;
 
+ protected:
+  // Holds a VideoFrame.Buffer.
+  const ScopedGlobalRef<jobject> j_video_frame_buffer_;
+
+ private:
   rtc::scoped_refptr<webrtc::I420BufferInterface> ToI420() override;
 
   AndroidType android_type() override { return AndroidType::kJavaBuffer; }
@@ -128,8 +131,6 @@ class AndroidVideoBuffer : public AndroidVideoFrameBuffer {
   const jmethodID j_release_id_;
   const jmethodID j_get_width_id_;
   const jmethodID j_get_height_id_;
-  // Holds a VideoFrame.Buffer.
-  ScopedGlobalRef<jobject> j_video_frame_buffer_;
 };
 
 class AndroidVideoBufferFactory {