bindings: Stop passing ExceptionState to callback function

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

Index: third_party/WebKit/Source/core/timing/PerformanceObserver.cpp
diff --git a/third_party/WebKit/Source/core/timing/PerformanceObserver.cpp b/third_party/WebKit/Source/core/timing/PerformanceObserver.cpp
index 8ff8102fd24a824e2324c27c2794e73c0fb15f31..8db13bbb06710efbc6e5325942cbcc37cd15eb7c 100644
--- a/third_party/WebKit/Source/core/timing/PerformanceObserver.cpp
+++ b/third_party/WebKit/Source/core/timing/PerformanceObserver.cpp
@@ -90,10 +90,7 @@ void PerformanceObserver::deliver() {
   performanceEntries.swap(m_performanceEntries);
   PerformanceObserverEntryList* entryList =
       new PerformanceObserverEntryList(performanceEntries);
-  // TODO(bashi): Make sure that not throwing exception is OK.
-  TrackExceptionState exceptionState;
-
-  m_callback->call(m_scriptState.get(), this, exceptionState, entryList, this);
+  m_callback->call(m_scriptState.get(), this, entryList, this);
 }
 
 DEFINE_TRACE(PerformanceObserver) {