Add EncodedImageCallback::OnEncodedImage().

webrtc/video/video_encoder_unittest.cc

Index: webrtc/video/video_encoder_unittest.cc
diff --git a/webrtc/video/video_encoder_unittest.cc b/webrtc/video/video_encoder_unittest.cc
index f2c3ea61c46636af85979e7b94945f4aca5e5656..ac006bb872a0515e77b9788c47bebf0292057781 100644
--- a/webrtc/video/video_encoder_unittest.cc
+++ b/webrtc/video/video_encoder_unittest.cc
@@ -85,10 +85,12 @@ class VideoEncoderSoftwareFallbackWrapperTest : public ::testing::Test {
 
   class FakeEncodedImageCallback : public EncodedImageCallback {
    public:
-    int32_t Encoded(const EncodedImage& encoded_image,
-                    const CodecSpecificInfo* codec_specific_info,
-                    const RTPFragmentationHeader* fragmentation) override {
-      return ++callback_count_;
+    Result OnEncodedImage(
+        const EncodedImage& encoded_image,
+        const CodecSpecificInfo* codec_specific_info,
+        const RTPFragmentationHeader* fragmentation) override {
+      ++callback_count_;
+      return Result(Result::OK, callback_count_);
     }
     int callback_count_ = 0;
   };