[ES6 modules] Introduce ScriptModuleResolverImpl

third_party/WebKit/Source/core/dom/Modulator.h

Index: third_party/WebKit/Source/core/dom/Modulator.h
diff --git a/third_party/WebKit/Source/core/dom/Modulator.h b/third_party/WebKit/Source/core/dom/Modulator.h
index 22517c73622907a69f17327d9a7ead0d4a4545aa..360eb50aa5c34be97faa0b3a04e15a0a7fe4d8d5 100644
--- a/third_party/WebKit/Source/core/dom/Modulator.h
+++ b/third_party/WebKit/Source/core/dom/Modulator.h
@@ -51,6 +51,10 @@ class CORE_EXPORT Modulator : public GarbageCollectedFinalized<Modulator> {
   virtual ReferrerPolicy referrerPolicy() = 0;
   virtual SecurityOrigin* securityOrigin() = 0;
 
+  // Synchronously retrieves a single module script from existing module map
+  // entry.
+  virtual ModuleScript* getFetchedModuleScript(const KURL&) = 0;
+
   // https://html.spec.whatwg.org/#resolve-a-module-specifier
   static KURL resolveModuleSpecifier(const String& moduleRequest,
                                      const KURL& baseURL);