RtcVideoDecoder: do not fallback to software when getting size 0x0 keyframe.

content/renderer/media/gpu/rtc_video_decoder_unittest.cc

Index: content/renderer/media/gpu/rtc_video_decoder_unittest.cc
diff --git a/content/renderer/media/gpu/rtc_video_decoder_unittest.cc b/content/renderer/media/gpu/rtc_video_decoder_unittest.cc
index 877d457c8d288c7c48aaeb68eab7619368601a7e..7fdbb910cbab8117a57f2bda01af07b7873904a2 100644
--- a/content/renderer/media/gpu/rtc_video_decoder_unittest.cc
+++ b/content/renderer/media/gpu/rtc_video_decoder_unittest.cc
@@ -291,8 +291,8 @@ TEST_P(RTCVideoDecoderTest, GetVDAErrorCounterForTesting) {
 
   webrtc::EncodedImage input_image;
   input_image._completeFrame = true;
-  input_image._encodedWidth = kMinResolutionWidth;
-  input_image._encodedHeight = kMaxResolutionHeight;
+  input_image._encodedWidth = 0;
+  input_image._encodedHeight = 0;
   input_image._frameType = webrtc::kVideoFrameDelta;
   input_image._length = kMinResolutionWidth * kMaxResolutionHeight;
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_ERROR,
@@ -310,8 +310,8 @@ TEST_P(RTCVideoDecoderTest, GetVDAErrorCounterForTesting) {
             rtc_decoder_->Decode(input_image, false, nullptr, nullptr, 0));
   EXPECT_EQ(1, rtc_decoder_->GetVDAErrorCounterForTesting());
 
-  // Decoder expects a keyframe after reset, so drops any other frames. However,
-  // we should still increment the error counter.
+  // Decoder expects a frame with size after reset, so drops any other frames.
+  // However, we should still increment the error counter.
   EXPECT_EQ(WEBRTC_VIDEO_CODEC_ERROR,
             rtc_decoder_->Decode(input_image, false, nullptr, nullptr, 0));
   EXPECT_EQ(2, rtc_decoder_->GetVDAErrorCounterForTesting());