Worklet: Enable module script loading for main thread worklets

third_party/WebKit/Source/core/workers/WorkerOrWorkletGlobalScope.cpp

Index: third_party/WebKit/Source/core/workers/WorkerOrWorkletGlobalScope.cpp
diff --git a/third_party/WebKit/Source/core/workers/WorkerOrWorkletGlobalScope.cpp b/third_party/WebKit/Source/core/workers/WorkerOrWorkletGlobalScope.cpp
index 108d35c1f638dbb838af1caa6cc3ebf01829b660..fc8d402de3762cbdd23d99f46551c4c96bb84e42 100644
--- a/third_party/WebKit/Source/core/workers/WorkerOrWorkletGlobalScope.cpp
+++ b/third_party/WebKit/Source/core/workers/WorkerOrWorkletGlobalScope.cpp
@@ -77,6 +77,11 @@ void WorkerOrWorkletGlobalScope::PostTask(
                                            is_instrumented));
 }
 
+bool WorkerOrWorkletGlobalScope::CanExecuteScripts(
+    ReasonForCallingCanExecuteScripts) {
+  return !IsJSExecutionForbidden();

[kouhei (in TOK), 2017/05/24 13:48:21]

Can this ever be forbidden?

[nhiroki, 2017/05/24 14:53:11]

This is forbidden when script evaluation cannot continue because of some
error/exception. See the caller of
WorkerOrWorkletScriptController::ForbidExecution for examples:
https://cs.chromium.org/chromium/src/third_party/WebKit/Source/bindings/core/...

+}
+
 void WorkerOrWorkletGlobalScope::Dispose() {
   DCHECK(script_controller_);
   script_controller_->Dispose();