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

Source/modules/cachestorage/InspectorCacheStorageAgent.h

Index: Source/modules/cachestorage/InspectorCacheStorageAgent.h
diff --git a/Source/modules/cachestorage/InspectorCacheStorageAgent.h b/Source/modules/cachestorage/InspectorCacheStorageAgent.h
index d2ca7b0d833a584501853eb2086b7c358a187cea..a7d378907767637b7b132f3739a4cd7ffae85d71 100644
--- a/Source/modules/cachestorage/InspectorCacheStorageAgent.h
+++ b/Source/modules/cachestorage/InspectorCacheStorageAgent.h
@@ -15,13 +15,18 @@ 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;
@@ -34,7 +39,14 @@ public:
     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