[ES6 modules] Introduce Modulator::Fetch{Tree,TreeInternal,Single}

third_party/WebKit/Source/core/testing/DummyModulator.cpp

Index: third_party/WebKit/Source/core/testing/DummyModulator.cpp
diff --git a/third_party/WebKit/Source/core/testing/DummyModulator.cpp b/third_party/WebKit/Source/core/testing/DummyModulator.cpp
index 80f5d08c01d1ad407b99e86674fd66ec546169ae..3fbc977ed10e477b84154b0ab6b107c58c497397 100644
--- a/third_party/WebKit/Source/core/testing/DummyModulator.cpp
+++ b/third_party/WebKit/Source/core/testing/DummyModulator.cpp
@@ -36,6 +36,24 @@ WebTaskRunner* DummyModulator::TaskRunner() {
   return nullptr;
 };
 
+void DummyModulator::FetchTree(const ModuleScriptFetchRequest&,
+                               ModuleTreeClient*) {
+  NOTREACHED();
+}
+
+void DummyModulator::FetchTreeInternal(const ModuleScriptFetchRequest&,
+                                       const AncestorList&,
+                                       ModuleGraphLevel,
+                                       ModuleTreeClient*) {
+  NOTREACHED();
+};
+
+void DummyModulator::FetchSingle(const ModuleScriptFetchRequest&,
+                                 ModuleGraphLevel,
+                                 SingleModuleClient*) {
+  NOTREACHED();
+}
+
 ModuleScript* DummyModulator::GetFetchedModuleScript(const KURL&) {
   NOTREACHED();
   return nullptr;