Inform VideoEncoder of negotiated capabilities

After this CL lands, an announcement will be made to
discuss-webrtc about the deprecation of one version
of InitEncode().

Bug: webrtc:10720
Change-Id: Ib992af0272bbb16ae16ef7e69491f365702d179e
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/140884
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Reviewed-by: Sami Kalliomäki <sakal@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Elad Alon <eladalon@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#28224}

sdk/android/tests/src/org/webrtc/HardwareVideoEncoderTest.java

@@ -58,7 +58,8 @@ public class HardwareVideoEncoderTest {
       /* startBitrate= */ 10000,
       /* maxFramerate= */ 30,
       /* numberOfSimulcastStreams= */ 1,
-      /* automaticResizeOn= */ true);
+      /* automaticResizeOn= */ true,
+      /* capabilities= */ new VideoEncoder.Capabilities(false /* lossNotification */));
   private static final long POLL_DELAY_MS = 10;
   private static final long DELIVER_ENCODED_IMAGE_DELAY_MS = 10;