Use Web IDL Union types in Service Worker's Cache interface

Source/modules/serviceworkers/Cache.h

Index: Source/modules/serviceworkers/Cache.h
diff --git a/Source/modules/serviceworkers/Cache.h b/Source/modules/serviceworkers/Cache.h
index 444bbd132f70d133c52656a149776b53c9b73b9e..20f4cc0006b08bad55978e25b0f5aaeab66a5f21 100644
--- a/Source/modules/serviceworkers/Cache.h
+++ b/Source/modules/serviceworkers/Cache.h
@@ -7,6 +7,7 @@
 
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptWrappable.h"
+#include "bindings/modules/v8/UnionTypesModules.h"
 #include "core/dom/DOMException.h"
 #include "modules/serviceworkers/CacheQueryOptions.h"
 #include "public/platform/WebServiceWorkerCache.h"
@@ -24,6 +25,8 @@ class Response;
 class Request;
 class ScriptState;
 
+typedef RequestOrUSVString RequestInfo;
+
 class Cache final : public GarbageCollectedFinalized<Cache>, public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
     WTF_MAKE_NONCOPYABLE(Cache);
@@ -31,20 +34,14 @@ public:
     static Cache* create(WebServiceWorkerCache*);
 
     // From Cache.idl:
-    ScriptPromise match(ScriptState*, Request*, const CacheQueryOptions&);
-    ScriptPromise match(ScriptState*, const String&, const CacheQueryOptions&, ExceptionState&);
-    ScriptPromise matchAll(ScriptState*, Request*, const CacheQueryOptions&);
-    ScriptPromise matchAll(ScriptState*, const String&, const CacheQueryOptions&, ExceptionState&);
-    ScriptPromise add(ScriptState*, Request*);
-    ScriptPromise add(ScriptState*, const String&, ExceptionState&);
+    ScriptPromise match(ScriptState*, const RequestInfo&, const CacheQueryOptions&, ExceptionState&);
+    ScriptPromise matchAll(ScriptState*, const RequestInfo&, const CacheQueryOptions&, ExceptionState&);
+    ScriptPromise add(ScriptState*, const RequestInfo&, ExceptionState&);
     ScriptPromise addAll(ScriptState*, const Vector<ScriptValue>&);
-    ScriptPromise deleteFunction(ScriptState*, Request*, const CacheQueryOptions&);
-    ScriptPromise deleteFunction(ScriptState*, const String&, const CacheQueryOptions&, ExceptionState&);
-    ScriptPromise put(ScriptState*, Request*, Response*);
-    ScriptPromise put(ScriptState*, const String&, Response*, ExceptionState&);
-    ScriptPromise keys(ScriptState*);
-    ScriptPromise keys(ScriptState*, Request*, const CacheQueryOptions&);
-    ScriptPromise keys(ScriptState*, const String&, const CacheQueryOptions&, ExceptionState&);
+    ScriptPromise deleteFunction(ScriptState*, const RequestInfo&, const CacheQueryOptions&, ExceptionState&);
+    ScriptPromise put(ScriptState*, const RequestInfo&, Response*, ExceptionState&);
+    ScriptPromise keys(ScriptState*, ExceptionState&);
+    ScriptPromise keys(ScriptState*, const RequestInfo&, const CacheQueryOptions&, ExceptionState&);
 
     static PassRefPtrWillBeRawPtr<DOMException> domExceptionForCacheError(WebServiceWorkerCacheError);