[WIP Prototype] ES6 https://html.spec.whatwg.org/#fetch-a-single-module-script implementation

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

Index: third_party/WebKit/Source/core/dom/Document.h
diff --git a/third_party/WebKit/Source/core/dom/Document.h b/third_party/WebKit/Source/core/dom/Document.h
index 4a8a171fd594c7f9618585c1b00e32097c6c241c..94043b81ca6d64e67055c9d77afff47d5ad37988 100644
--- a/third_party/WebKit/Source/core/dom/Document.h
+++ b/third_party/WebKit/Source/core/dom/Document.h
@@ -135,6 +135,7 @@ class LocalFrame;
 class Location;
 class MediaQueryListListener;
 class MediaQueryMatcher;
+class ModuleMap;
 class NodeFilter;
 class NodeIterator;
 class NthIndexCache;
@@ -1290,6 +1291,8 @@ class CORE_EXPORT Document : public ContainerNode,
 
   PropertyRegistry* propertyRegistry();
 
+  ModuleMap* ensureModuleMap();
+
   // Indicates whether the user has interacted with this particular Document.
   void setHasReceivedUserGesture() { m_hasReceivedUserGesture = true; }
   bool hasReceivedUserGesture() const { return m_hasReceivedUserGesture; }
@@ -1659,6 +1662,8 @@ class CORE_EXPORT Document : public ContainerNode,
 
   Member<PropertyRegistry> m_propertyRegistry;
 
+  Member<ModuleMap> m_moduleMap;
+
   unsigned m_passwordCount;
 
   TaskHandle m_sensitiveInputVisibilityTask;