Cache Storage: restrict access to secure origins (Blink-side)

Source/modules/cachestorage/InspectorCacheStorageAgent.h

 // Copyright 2014 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 InspectorCacheStorageAgent_h
 #define InspectorCacheStorageAgent_h
 
 #include "core/InspectorFrontend.h"
 #include "core/inspector/InspectorBaseAgent.h"
 #include "modules/ModulesExport.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 typedef String ErrorString;
 
+class ExecutionContext;
+class Page;
+class SecurityOrigin;
+class WebServiceWorkerCacheStorage;
+
 class MODULES_EXPORT InspectorCacheStorageAgent final : public InspectorBaseAgent<InspectorCacheStorageAgent, InspectorFrontend::CacheStorage>, public InspectorBackendDispatcher::CacheStorageCommandHandler {
     WTF_MAKE_NONCOPYABLE(InspectorCacheStorageAgent);
 
 public:
-    static PassOwnPtrWillBeRawPtr<InspectorCacheStorageAgent> create()
+    static PassOwnPtrWillBeRawPtr<InspectorCacheStorageAgent> create(Page* page)
     {
-        return adoptPtrWillBeNoop(new InspectorCacheStorageAgent());
+        return adoptPtrWillBeNoop(new InspectorCacheStorageAgent(page));
     }
 
     ~InspectorCacheStorageAgent() override;
 
     DECLARE_VIRTUAL_TRACE();
 
     void requestCacheNames(ErrorString*, const String& securityOrigin, PassRefPtrWillBeRawPtr<RequestCacheNamesCallback>) override;
     void requestEntries(ErrorString*, const String& cacheId, int skipCount, int pageSize, PassRefPtrWillBeRawPtr<RequestEntriesCallback>) override;
     void deleteCache(ErrorString*, const String& cacheId, PassRefPtrWillBeRawPtr<DeleteCacheCallback>) override;
     void deleteEntry(ErrorString*, const String& cacheId, const String& request, PassRefPtrWillBeRawPtr<DeleteEntryCallback>) override;
 
 private:
-    explicit InspectorCacheStorageAgent();
+    explicit InspectorCacheStorageAgent(Page*);
+
+    bool canAccessCacheStorage(const String& securityOrigin);
+    ExecutionContext* assertExecutionContextForOrigin(ErrorString*, SecurityOrigin*);
+    PassOwnPtr<WebServiceWorkerCacheStorage> assertCacheStorage(ErrorString*, const String& securityOrigin);
+    PassOwnPtr<WebServiceWorkerCacheStorage> assertCacheStorageAndNameForId(ErrorString*, const String& cacheId, String* cacheName);
+
+    RawPtrWillBeMember<Page> m_page;
 };
 
 } // namespace blink
 
 #endif // InspectorCacheStorageAgent_h