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}

modules/video_coding/codecs/test/video_codec_unittest.cc

@@ -10,6 +10,7 @@
 
 #include <utility>
 
+#include "api/video_codecs/video_encoder.h"
 #include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"
 #include "modules/video_coding/codecs/test/video_codec_unittest.h"
 #include "modules/video_coding/include/video_error_codes.h"
@@ -25,6 +26,9 @@ static const int kHeight = 144;       // Height of the input image.
 static const int kMaxFramerate = 30;  // Arbitrary value.
 
 namespace webrtc {
+namespace {
+const VideoEncoder::Capabilities kCapabilities(false);
+}
 
 EncodedImageCallback::Result
 VideoCodecUnitTest::FakeEncodeCompleteCallback::OnEncodedImage(
@@ -78,8 +82,10 @@ void VideoCodecUnitTest::SetUp() {
   decoder_->RegisterDecodeCompleteCallback(&decode_complete_callback_);
 
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
-            encoder_->InitEncode(&codec_settings_, 1 /* number of cores */,
-                                 0 /* max payload size (unused) */));
+            encoder_->InitEncode(
+                &codec_settings_,
+                VideoEncoder::Settings(kCapabilities, 1 /* number of cores */,
+                                       0 /* max payload size (unused) */)));
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
             decoder_->InitDecode(&codec_settings_, 1 /* number of cores */));
 }