Disallow Atomics.wait in ServiceWorker, allow in SharedWorker

third_party/WebKit/Source/bindings/core/v8/WorkerV8Settings.h

Index: third_party/WebKit/Source/bindings/core/v8/WorkerV8Settings.h
diff --git a/third_party/WebKit/Source/bindings/core/v8/WorkerV8Settings.h b/third_party/WebKit/Source/bindings/core/v8/WorkerV8Settings.h
index 3730794119e29995f17a41fadb1aa40ff9e76ec4..a6b3a6616daa3ad39a91957ddb5f6fa75b3720c7 100644
--- a/third_party/WebKit/Source/bindings/core/v8/WorkerV8Settings.h
+++ b/third_party/WebKit/Source/bindings/core/v8/WorkerV8Settings.h
@@ -13,15 +13,20 @@ namespace blink {
 // The V8 settings that are passed from the main isolate to the worker isolate.
 struct CORE_EXPORT WorkerV8Settings {
   enum class HeapLimitMode { kDefault, kIncreasedForDebugging };
+  enum class AtomicsWaitMode { kDisallow, kAllow };
   WorkerV8Settings(HeapLimitMode heap_limit_mode,
-                   V8CacheOptions v8_cache_options)
+                   V8CacheOptions v8_cache_options,
+                   AtomicsWaitMode atomics_wait_mode)
       : heap_limit_mode_(heap_limit_mode),
-        v8_cache_options_(v8_cache_options) {}
+        v8_cache_options_(v8_cache_options),
+        atomics_wait_mode_(atomics_wait_mode) {}
   static WorkerV8Settings Default() {
-    return WorkerV8Settings(HeapLimitMode::kDefault, kV8CacheOptionsDefault);
+    return WorkerV8Settings(HeapLimitMode::kDefault, kV8CacheOptionsDefault,
+                            AtomicsWaitMode::kDisallow);
   }
   HeapLimitMode heap_limit_mode_;
   V8CacheOptions v8_cache_options_;
+  AtomicsWaitMode atomics_wait_mode_;
 };
 
 }  // namespace blink