FasterLocationReload: Add a field trial flag to enable the feature

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 b2eb95f4f1366915cdab7887d86eb33667703d74..0a35cd1d951ae6d037d40f21dc3c564768dd05d5 100644
--- a/content/child/runtime_features.cc
+++ b/content/child/runtime_features.cc
@@ -325,6 +325,9 @@ void SetRuntimeFeaturesDefaultsAndUpdateFromArgs(
   if (base::FeatureList::IsEnabled(features::kGenericSensor))
     WebRuntimeFeatures::enableGenericSensor(true);
 
+  if (base::FeatureList::IsEnabled(features::kFasterLocationReload))
+    WebRuntimeFeatures::enableFasterLocationReload(true);
+
   // Enable features which VrShell depends on.
   if (base::FeatureList::IsEnabled(features::kVrShell)) {
     WebRuntimeFeatures::enableGamepadExtensions(true);