Eagerly install Origin Trial features on window.

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

Index: third_party/WebKit/Source/bindings/core/v8/ConditionalFeatures.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/ConditionalFeatures.cpp b/third_party/WebKit/Source/bindings/core/v8/ConditionalFeatures.cpp
index 37b1ce907e1446eee13fd20aa6669d3a382c6ff7..0465a28f42c68bec1ed83cd610431f31180c3bce 100644
--- a/third_party/WebKit/Source/bindings/core/v8/ConditionalFeatures.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/ConditionalFeatures.cpp
@@ -58,4 +58,14 @@ void installConditionalFeatures(const WrapperTypeInfo* type,
                                           interfaceObject);
 }
 
+void installPendingConditionalFeaturesOnWindow(const ScriptState* scriptState) {
+  DCHECK(scriptState);
+  DCHECK(scriptState->context() == scriptState->isolate()->GetCurrentContext());
+  DCHECK(scriptState->perContextData());
+  DCHECK(scriptState->world().isMainWorld());
+  (*s_installConditionalFeaturesFunction)(&V8Window::wrapperTypeInfo,
+                                          scriptState, v8::Local<v8::Object>(),
+                                          v8::Local<v8::Function>());
+}
+
 }  // namespace blink