Move kMinPixelsPerFrame constant in VideoStreamEncoder to VideoEncoder::ScalingSettings.

webrtc/video/video_stream_encoder_unittest.cc

Index: webrtc/video/video_stream_encoder_unittest.cc
diff --git a/webrtc/video/video_stream_encoder_unittest.cc b/webrtc/video/video_stream_encoder_unittest.cc
index d7d09db7aad8d1379a65f984dddf6369815a95bb..6407bcb34a3515f6e507999281c3bffec8262a96 100644
--- a/webrtc/video/video_stream_encoder_unittest.cc
+++ b/webrtc/video/video_stream_encoder_unittest.cc
@@ -29,8 +29,6 @@
 #include "webrtc/video/video_stream_encoder.h"
 
 namespace {
-// TODO(kthelgason): Lower this limit when better testing
-// on MediaCodec and fallback implementations are in place.
 const int kMinPixelsPerFrame = 320 * 180;
 const int kMinFramerateFps = 2;
 const int64_t kFrameTimeoutMs = 100;
@@ -473,7 +471,7 @@ class VideoStreamEncoderTest : public ::testing::Test {
     VideoEncoder::ScalingSettings GetScalingSettings() const override {
       rtc::CritScope lock(&local_crit_sect_);
       if (quality_scaling_)
-        return VideoEncoder::ScalingSettings(true, 1, 2);
+        return VideoEncoder::ScalingSettings(true, 1, 2, kMinPixelsPerFrame);
       return VideoEncoder::ScalingSettings(false);
     }
 
@@ -1812,7 +1810,7 @@ TEST_F(VideoStreamEncoderTest, DoesNotScaleBelowSetResolutionLimit) {
   video_stream_encoder_->OnBitrateUpdated(kTargetBitrateBps, 0, 0);
 
   // Enable adapter, expected input resolutions when downscaling:
-  // 1280x720 -> 960x540 -> 640x360 -> 480x270 -> 320x180 (min resolution limit)
+  // 1280x720 -> 960x540 -> 640x360 -> 480x270 -> 320x180 (kMinPixelsPerFrame)
   video_source_.set_adaptation_enabled(true);
 
   EXPECT_FALSE(stats_proxy_->GetStats().bw_limited_resolution);