scheduler: Throttle timers in out-of-view frames

content/child/runtime_features.cc

Index: content/child/runtime_features.cc
diff --git a/content/child/runtime_features.cc b/content/child/runtime_features.cc
index 20addb9bae5c1675a0aaba4599bb3b765e1709e5..15163d0f3efcf57d18f7405fb3595c3cbc5a080a 100644
--- a/content/child/runtime_features.cc
+++ b/content/child/runtime_features.cc
@@ -263,6 +263,9 @@ void SetRuntimeFeaturesDefaultsAndUpdateFromArgs(
   WebRuntimeFeatures::enableRenderingPipelineThrottling(
     base::FeatureList::IsEnabled(features::kRenderingPipelineThrottling));
 
+  WebRuntimeFeatures::enableTimerThrottlingForHiddenFrames(
+      base::FeatureList::IsEnabled(features::kTimerThrottlingForHiddenFrames));
+
   if (base::FeatureList::IsEnabled(
           features::kSendBeaconThrowForBlobWithNonSimpleType))
     WebRuntimeFeatures::enableSendBeaconThrowForBlobWithNonSimpleType(true);