Add an experimental flag to change location.reload to take a hard-reload

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 b3096b27f628988837e996873b97600636a0bc34..a3f3e31fb70fef63c9051be7da40b342f5d2dc9a 100644
--- a/content/child/runtime_features.cc
+++ b/content/child/runtime_features.cc
@@ -381,6 +381,9 @@ void SetRuntimeFeaturesDefaultsAndUpdateFromArgs(
   }
 #endif
 
+  WebRuntimeFeatures::EnableLocationHardReload(
+      base::FeatureList::IsEnabled(features::kLocationHardReload));
+
   // Enable explicitly enabled features, and then disable explicitly disabled
   // ones.
   if (command_line.HasSwitch(switches::kEnableBlinkFeatures)) {