Remove RefPtr<ScriptState> from PerformanceObserver

third_party/WebKit/Source/core/timing/PerformanceBaseTest.cpp

Index: third_party/WebKit/Source/core/timing/PerformanceBaseTest.cpp
diff --git a/third_party/WebKit/Source/core/timing/PerformanceBaseTest.cpp b/third_party/WebKit/Source/core/timing/PerformanceBaseTest.cpp
index fa6848f9df68f268a0f4ac28f0cbf0cd5490b780..1ff271cd886a065e9cf9992dc8ca54fc64cecf59 100644
--- a/third_party/WebKit/Source/core/timing/PerformanceBaseTest.cpp
+++ b/third_party/WebKit/Source/core/timing/PerformanceBaseTest.cpp
@@ -40,7 +40,8 @@ class PerformanceBaseTest : public ::testing::Test {
         v8::Function::New(scriptState->context(), nullptr).ToLocalChecked();
     m_base = new TestPerformanceBase();
     m_cb = PerformanceObserverCallback::create(scriptState, callback);
-    m_observer = PerformanceObserver::create(scriptState, m_base, m_cb);
+    m_observer = PerformanceObserver::create(scriptState->getExecutionContext(),
+                                             m_base, m_cb);
   }
 
   void SetUp() override {