Revert of Make document.rootScroller into an origin trial

third_party/WebKit/Source/bindings/core/v8/ConditionalFeaturesForCore.cpp

Index: third_party/WebKit/Source/bindings/core/v8/ConditionalFeaturesForCore.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/ConditionalFeaturesForCore.cpp b/third_party/WebKit/Source/bindings/core/v8/ConditionalFeaturesForCore.cpp
index 0f223d29a575075d9bf584695590bd0075fcca7d..1a408f9b375d501026c0dca45569cd0d8c9fba17 100644
--- a/third_party/WebKit/Source/bindings/core/v8/ConditionalFeaturesForCore.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/ConditionalFeaturesForCore.cpp
@@ -44,11 +44,6 @@ void installConditionalFeaturesCore(const WrapperTypeInfo* wrapperTypeInfo,
           isolate, world, v8::Local<v8::Object>(), prototypeObject,
           interfaceObject);
     }
-  } else if (wrapperTypeInfo == &V8Document::wrapperTypeInfo) {
-    if (OriginTrials::setRootScrollerEnabled(executionContext)) {
-      V8Document::installRootScroller(isolate, world, v8::Local<v8::Object>(),
-                                      prototypeObject, interfaceObject);
-    }
   }
 }
 
@@ -74,14 +69,6 @@ void installPendingConditionalFeatureCore(const String& feature,
     }
     return;
   }
-  if (feature == "RootScroller") {
-    if (contextData->getExistingConstructorAndPrototypeForType(
-            &V8Document::wrapperTypeInfo, &prototypeObject, &interfaceObject)) {
-      V8Document::installRootScroller(isolate, world, v8::Local<v8::Object>(),
-                                      prototypeObject, interfaceObject);
-    }
-    return;
-  }
 }
 
 void installConditionalFeaturesOnWindow(const ScriptState* scriptState) {