Initial implementation of bindings and basic classes for worklets.

third_party/WebKit/Source/bindings/core/v8/V8Binding.cpp

Index: third_party/WebKit/Source/bindings/core/v8/V8Binding.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/V8Binding.cpp b/third_party/WebKit/Source/bindings/core/v8/V8Binding.cpp
index b4830c5fea60f280168c1089055a37f059dbb475..589ffb00a01e074a77c91c74bda110a6eadfda81 100644
--- a/third_party/WebKit/Source/bindings/core/v8/V8Binding.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/V8Binding.cpp
@@ -30,6 +30,8 @@
 
 #include "bindings/core/v8/V8Binding.h"
 
+#include "bindings/core/v8/IsolatedScriptController.h"
+#include "bindings/core/v8/ModuleProxy.h"
 #include "bindings/core/v8/ScriptController.h"
 #include "bindings/core/v8/V8AbstractEventListener.h"
 #include "bindings/core/v8/V8ArrayBufferView.h"
@@ -43,7 +45,6 @@
 #include "bindings/core/v8/V8WorkerGlobalScope.h"
 #include "bindings/core/v8/V8XPathNSResolver.h"
 #include "bindings/core/v8/WindowProxy.h"
-#include "bindings/core/v8/WorkerScriptController.h"
 #include "bindings/core/v8/custom/V8CustomXPathNSResolver.h"
 #include "core/dom/Document.h"
 #include "core/dom/Element.h"
@@ -712,8 +713,7 @@ ExecutionContext* toExecutionContext(v8::Local<v8::Context> context)
     v8::Local<v8::Object> workerWrapper = V8WorkerGlobalScope::findInstanceInPrototypeChain(global, context->GetIsolate());
     if (!workerWrapper.IsEmpty())
         return V8WorkerGlobalScope::toImpl(workerWrapper)->executionContext();
-    // FIXME: Is this line of code reachable?
-    return 0;
+    return ModuleProxy::moduleProxy().toExecutionContextForModules(context);
 }
 
 ExecutionContext* currentExecutionContext(v8::Isolate* isolate)
@@ -777,12 +777,12 @@ v8::Local<v8::Context> toV8Context(ExecutionContext* context, DOMWrapperWorld& w
         if (LocalFrame* frame = toDocument(context)->frame())
             return toV8Context(frame, world);
     } else if (context->isWorkerGlobalScope()) {
-        if (WorkerScriptController* script = toWorkerGlobalScope(context)->script()) {
+        if (IsolatedScriptController* script = toWorkerGlobalScope(context)->script()) {
             if (script->scriptState()->contextIsValid())
                 return script->scriptState()->context();
         }
     }
-    return v8::Local<v8::Context>();
+    return ModuleProxy::moduleProxy().toV8ContextForModules(context);
 }
 
 v8::Local<v8::Context> toV8Context(Frame* frame, DOMWrapperWorld& world)