Disabling the potentially flaky test

VideoProcessorIntegrationTest.
ProcessNoLossSpatialResizeFrameDropVP9

TBR=sprang@webrtc.org

BUG=webrtc:6873

Review-Url: https://codereview.webrtc.org/2565373002
Cr-Commit-Position: refs/heads/master@{#15545}

webrtc/modules/video_coding/codecs/test/videoprocessor_integrationtest.cc

@@ -761,7 +761,8 @@ TEST_F(VideoProcessorIntegrationTest, ProcessNoLossDenoiserOnVP9) {
 // Run with no packet loss, at low bitrate.
 // spatial_resize is on, for this low bitrate expect one resize in sequence.
 // Resize happens on delta frame. Expect only one key frame (first frame).
-TEST_F(VideoProcessorIntegrationTest, ProcessNoLossSpatialResizeFrameDropVP9) {
+TEST_F(VideoProcessorIntegrationTest,
+       DISABLED_ProcessNoLossSpatialResizeFrameDropVP9) {
   config_.networking_config.packet_loss_probability = 0;
   // Bitrate and frame rate profile.
   RateProfile rate_profile;