Componentization: make core classes visible for blink_tests and blink_web.

Source/core/frame/OriginsUsingFeatures.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 OriginsUsingFeatures_h
 #define OriginsUsingFeatures_h
 
+#include "core/CoreExport.h"
 #include "platform/heap/Handle.h"
 #include "wtf/HashMap.h"
 #include "wtf/Vector.h"
 #include "wtf/text/StringHash.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class Document;
 class EventTarget;
 class ScriptState;
 
-class OriginsUsingFeatures {
+class CORE_EXPORT OriginsUsingFeatures {
     DISALLOW_ALLOCATION();
 public:
     ~OriginsUsingFeatures();
 
     enum class Feature {
         ElementCreateShadowRoot,
         DocumentRegisterElement,
         EventPath,
 
         NumberOfFeatures // This must be the last item.
@@ skipping 31 matching lines @@
     void recordOriginsToRappor();
     void recordNamesToRappor();
 
     Vector<std::pair<String, OriginsUsingFeatures::Value>, 1> m_originAndValues;
     HashMap<String, OriginsUsingFeatures::Value> m_valueByName;
 };
 
 } // namespace blink
 
 #endif // OriginsUsingFeatures_h