WIP: Implement binding layer for Blink-in-JavaScript

Source/bindings/IDLExtendedAttributes.txt

 #
 # This file describes all Blink IDL extended attributes and allowed values.
 # If any IDL file uses an extended attribute or values not listed below, the
 # build will fail.
 # If you would like to add a new extended attribute or value, please:
 #     (1) add the extended attribute or value to this file
 #     (2) add an explanation to the Blink IDL extended attributes document:
 #         http://www.chromium.org/blink/webidl/blink-idl-extended-attributes
 #     (3) add appropriate test cases to run-bindings-tests
 #
@@ skipping 17 matching lines @@
 #       arbitrary and combinations thereof, e.g. [Attr=IndexedDB],
 #       [Attr=DeleteFunction], [Attr=X|Y].
 #     - "Attr=|*" means that Attr takes an optional value, which can be
 #       arbitrary, e.g. [Attr], [Attr=X].
 #     - "Attr=X|*" means that Attr takes an required value, which can be
 #       arbitrary, but that "X" is standard, e.g. [Attr=X], [Attr=Foo].
 #
 
 ActiveDOMObject
 ActivityLogging=ForAllWorlds|GetterForAllWorlds|SetterForAllWorlds|ForIsolatedWorlds|GetterForIsolatedWorlds|SetterForIsolatedWorlds
+BlinkInJavaScript
 CachedAttribute=*
 CallWith=ExecutionContext|ScriptState|ScriptArguments|ActiveWindow|FirstWindow|ThisValue
 CheckSecurity=Frame|Node
 Clamp
 Conditional=*
 Constructor
 # FIXME: remove [ConstructorCallWith=Document], as can instead use
 # [ConstructorCallWith=ExecutionContext] + toDocument(executionContext)
 ConstructorCallWith=ExecutionContext|Document
 Custom=|Getter|Setter|LegacyCallAsFunction|ToV8|VisitDOMWrapper|Wrap
@@ skipping 39 matching lines @@
 RuntimeEnabled=*
 SetReference=*
 SetterCallWith=ExecutionContext|ScriptState|ScriptArguments|ActiveWindow|FirstWindow
 SpecialWrapFor=*
 StrictTypeChecking
 TreatNullAs=NullString|*
 TreatReturnedNullStringAs=Null|Undefined
 TreatUndefinedAs=NullString|*
 URL
 Unforgeable