Expose the ServiceWorker's v8 context to embedders.

Source/web/ServiceWorkerGlobalScopeProxy.cpp

Index: Source/web/ServiceWorkerGlobalScopeProxy.cpp
diff --git a/Source/web/ServiceWorkerGlobalScopeProxy.cpp b/Source/web/ServiceWorkerGlobalScopeProxy.cpp
index f87bdefde6edc1f30d9d4e85a8ce65d90f42c023..06d559f9903e81e31801540dd65bd3d38fe04c94 100644
--- a/Source/web/ServiceWorkerGlobalScopeProxy.cpp
+++ b/Source/web/ServiceWorkerGlobalScopeProxy.cpp
@@ -35,6 +35,7 @@
 #include "core/dom/CrossThreadTask.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/dom/MessagePort.h"
+#include "core/events/ErrorEvent.h"
 #include "core/events/MessageEvent.h"
 #include "core/workers/WorkerGlobalScope.h"
 #include "modules/push_messaging/PushEvent.h"
@@ -63,6 +64,14 @@ ServiceWorkerGlobalScopeProxy::~ServiceWorkerGlobalScopeProxy()
 {
 }
 
+void ServiceWorkerGlobalScopeProxy::evaluate(const ScriptSourceCode& javascript)
+{
+    RefPtrWillBeRawPtr<ErrorEvent> error;
+    m_workerGlobalScope->script()->evaluate(javascript, &error);
+    if (error)
+        m_client.reportException(error->message(), error->lineno(), error->colno(), error->filename());
+}
+
 void ServiceWorkerGlobalScopeProxy::dispatchInstallEvent(int eventID)
 {
     ASSERT(m_workerGlobalScope);
@@ -114,6 +123,11 @@ void ServiceWorkerGlobalScopeProxy::dispatchSyncEvent(int eventID)
     ServiceWorkerGlobalScopeClient::from(m_workerGlobalScope)->didHandleSyncEvent(eventID);
 }
 
+v8::Handle<v8::Context> ServiceWorkerGlobalScopeProxy::v8Context()
+{
+    return m_workerGlobalScope->script()->context();
+}
+
 void ServiceWorkerGlobalScopeProxy::reportException(const String& errorMessage, int lineNumber, int columnNumber, const String& sourceURL)
 {
     m_client.reportException(errorMessage, lineNumber, columnNumber, sourceURL);