Experimental patch for adapting adaptation to CPU count on Mac.

webrtc/video/overuse_frame_detector.h

Index: webrtc/video/overuse_frame_detector.h
diff --git a/webrtc/video/overuse_frame_detector.h b/webrtc/video/overuse_frame_detector.h
index 8184aaf36954e19356754ed5e9436033e6fcef8b..80c9b55fb0056269a56ba3cd3cec829c46cb7983 100644
--- a/webrtc/video/overuse_frame_detector.h
+++ b/webrtc/video/overuse_frame_detector.h
@@ -42,13 +42,7 @@ class CpuOveruseObserver {
 };
 
 struct CpuOveruseOptions {
-  CpuOveruseOptions()
-      : low_encode_usage_threshold_percent(55),
-        high_encode_usage_threshold_percent(85),
-        frame_timeout_interval_ms(1500),
-        min_frame_samples(120),
-        min_process_count(3),
-        high_threshold_consecutive_count(2) {}
+  CpuOveruseOptions();
 
   int low_encode_usage_threshold_percent;  // Threshold for triggering underuse.
   int high_encode_usage_threshold_percent;  // Threshold for triggering overuse.