Added issue on crashing Dartium 45 pausing and remove method not used.

Source/bindings/core/dart/DartUtilities.cpp

Index: Source/bindings/core/dart/DartUtilities.cpp
diff --git a/Source/bindings/core/dart/DartUtilities.cpp b/Source/bindings/core/dart/DartUtilities.cpp
index a94f87714a0eaa055e05f6ab8cf348bf20ef2ae9..935303bc6ee3d021a8eb6a14d24c478bcd3d29e1 100644
--- a/Source/bindings/core/dart/DartUtilities.cpp
+++ b/Source/bindings/core/dart/DartUtilities.cpp
@@ -439,6 +439,9 @@ Dart_Handle DartUtilities::numberToDart(double value)
 
 ScriptValue DartUtilities::dartToScriptValue(Dart_Handle object)
 {
+    // TODO(terry): Added bug per JacobR - he thinks it would be better to use
+    //              DartHandleProxy probably pressing pause crashes Dartium 45.
+    //              See issue: https://github.com/dart-lang/sdk/issues/25589
     Dart_Handle exception = 0;
     ScriptState* v8ScriptState = currentDartScriptState()->v8ScriptState();
     v8::Handle<v8::Value> value = V8Converter::toV8(object, exception);
@@ -1103,13 +1106,6 @@ DartScriptState* DartUtilities::currentDartScriptState()
     return dartDOMData->rootScriptState();
 }
 
-PassRefPtr<ScriptArguments> DartUtilities::createScriptArguments(Dart_Handle argument, Dart_Handle& exception)
-{
-    Vector<ScriptValue> arguments;
-    arguments.append(DartUtilities::dartToScriptValue(argument));
-    return ScriptArguments::create(DartUtilities::currentDartScriptState()->v8ScriptState(), arguments);
-}
-
 static PassRefPtr<ScriptCallStack> createScriptCallStackFromStackTrace(Dart_StackTrace stackTrace)
 {
     uintptr_t frameCount = 0;