Migrate more tests to ScopedFeatureList.

content/browser/memory/memory_coordinator.cc

Index: content/browser/memory/memory_coordinator.cc
diff --git a/content/browser/memory/memory_coordinator.cc b/content/browser/memory/memory_coordinator.cc
index 517aaedc34a1a13f696d9e0532c5c4c9117458a1..02a1e148232cd74b38a85755e1f69cd92c2c1629 100644
--- a/content/browser/memory/memory_coordinator.cc
+++ b/content/browser/memory/memory_coordinator.cc
@@ -120,14 +120,6 @@ mojom::MemoryState MemoryCoordinator::GetMemoryState(
   return iter->second.memory_state;
 }
 
-void MemoryCoordinator::EnableFeaturesForTesting() {
-  base::FeatureList::ClearInstanceForTesting();
-  std::unique_ptr<base::FeatureList> feature_list(new base::FeatureList);
-  feature_list->InitializeFromCommandLine(features::kMemoryCoordinator.name,
-                                          "");
-  base::FeatureList::SetInstance(std::move(feature_list));
-}
-
 base::MemoryState MemoryCoordinator::GetCurrentMemoryState() const {
   return base::MemoryState::UNKNOWN;
 }