Supplement should have a Member to the corresponding Supplementable object (Part 1)

third_party/WebKit/Source/core/origin_trials/OriginTrialContext.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef OriginTrialContext_h
 #define OriginTrialContext_h
 
 #include "core/CoreExport.h"
+#include "core/dom/ExecutionContext.h"
 #include "platform/Supplementable.h"
 #include "wtf/HashSet.h"
 #include "wtf/Vector.h"
 #include "wtf/text/StringHash.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class ExecutionContext;
 enum class WebOriginTrialTokenStatus;
@@ skipping 71 matching lines @@
     WebTrialTokenValidator* m_trialTokenValidator;
 
     // Records whether a feature has been installed into the host's V8 context,
     // for each feature name.
     HashSet<String> m_bindingsInstalled;
 };
 
 } // namespace blink
 
 #endif // OriginTrialContext_h