Added Dartium changes onto 45.0.2454.104

Source/bindings/IDLExtendedAttributes.txt

Index: Source/bindings/IDLExtendedAttributes.txt
diff --git a/Source/bindings/IDLExtendedAttributes.txt b/Source/bindings/IDLExtendedAttributes.txt
index 1467caf50779665034871a0ce10079e8bba854d3..c88d15d5527374a18cfa9aa7656d9788caa8ce6a 100644
--- a/Source/bindings/IDLExtendedAttributes.txt
+++ b/Source/bindings/IDLExtendedAttributes.txt
@@ -46,6 +46,25 @@ ConstructorCallWith=ExecutionContext|ScriptState|Document
 Custom=|Getter|Setter|LegacyCallAsFunction|VisitDOMWrapper|PropertyGetter|PropertyEnumerator|PropertyQuery|CallPrologue|CallEpilogue
 CustomConstructor
 CustomElementCallbacks
+# Dartium specific attributes.
+# DartCustom can have no value or New if New an additional method is added (V8 will not see this method)
+DartCustom=|New|Setter|Getter
+# DartName should have the alias name to be used to resolve.
+DartName=*
+# DartSuppress can have no value will suppress attribute/method, if attribute can also suppress
+# just the DartSuppress=getter or DartSuppress=Setter
+DartSuppress=|Getter|Setter
+# No need to setup Dart API scope when a native function is invoked. 
+DartNoAutoScope
+# TODO(terry): Used in dart.idl - look at removing or using 
+DartSupplemental
+# TODO(terry): Used in dart.idl (look at eliminating).
+DartForceOptional
+# TODO(terry): Used in dart.idl (look at eliminating).
+Callback
+# TODO(terry): Used in dart.idl (look at eliminating).
+DartStrictTypeChecking
+# End of Dartium attributes.
 Default=Undefined
 DependentLifetime
 DeprecateAs=*