Initial implementation of bindings and basic classes for worklets.

third_party/WebKit/Source/bindings/modules/v8/V8BindingForModules.cpp

Index: third_party/WebKit/Source/bindings/modules/v8/V8BindingForModules.cpp
diff --git a/third_party/WebKit/Source/bindings/modules/v8/V8BindingForModules.cpp b/third_party/WebKit/Source/bindings/modules/v8/V8BindingForModules.cpp
index c64fc776dbe07fb27ad0f93be52256628ba34dfc..b4cfb82a6cf1a0aecad2835ba92441e41295697d 100644
--- a/third_party/WebKit/Source/bindings/modules/v8/V8BindingForModules.cpp
+++ b/third_party/WebKit/Source/bindings/modules/v8/V8BindingForModules.cpp
@@ -34,6 +34,7 @@
 #include "bindings/core/v8/V8DOMStringList.h"
 #include "bindings/core/v8/V8File.h"
 #include "bindings/core/v8/V8Uint8Array.h"
+#include "bindings/core/v8/WorkerOrWorkletScriptController.h"
 #include "bindings/modules/v8/ToV8ForModules.h"
 #include "bindings/modules/v8/V8IDBCursor.h"
 #include "bindings/modules/v8/V8IDBCursorWithValue.h"
@@ -41,13 +42,16 @@
 #include "bindings/modules/v8/V8IDBIndex.h"
 #include "bindings/modules/v8/V8IDBKeyRange.h"
 #include "bindings/modules/v8/V8IDBObjectStore.h"
+#include "bindings/modules/v8/V8WorkletGlobalScope.h"
 #include "core/dom/DOMArrayBuffer.h"
 #include "core/dom/DOMArrayBufferView.h"
+#include "core/dom/ExecutionContext.h"
 #include "modules/indexeddb/IDBKey.h"
 #include "modules/indexeddb/IDBKeyPath.h"
 #include "modules/indexeddb/IDBKeyRange.h"
 #include "modules/indexeddb/IDBTracing.h"
 #include "modules/indexeddb/IDBValue.h"
+#include "modules/worklet/WorkletGlobalScope.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "platform/SharedBuffer.h"
 #include "wtf/MathExtras.h"
@@ -516,4 +520,16 @@ void assertPrimaryKeyValidOrInjectable(ScriptState* scriptState, const IDBValue*
 }
 #endif
 
+ExecutionContext* toExecutionContextForModules(v8::Local<v8::Context> context)
+{
+    if (context.IsEmpty())
+        return nullptr;
+    v8::Local<v8::Object> global = context->Global();
+    v8::Local<v8::Object> workletWrapper = V8WorkletGlobalScope::findInstanceInPrototypeChain(global, context->GetIsolate());
+    if (!workletWrapper.IsEmpty())
+        return V8WorkletGlobalScope::toImpl(workletWrapper);
+    // FIXME: Is this line of code reachable?
+    return nullptr;
+}
+
 } // namespace blink