IDL: Support [DeprecateAs] and [MeasureAs] on constants

Source/bindings/core/v8/V8DOMConfiguration.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 111 matching lines @@
     // the ObjectTemplate. PropertyAttributes is always ReadOnly.
     struct ConstantConfiguration {
         const char* const name;
         int ivalue;
         double dvalue;
         const char* const svalue;
         ConstantType type;
     };
 
     static void installConstants(v8::Handle<v8::FunctionTemplate>, v8::Handle<v8::ObjectTemplate>, const ConstantConfiguration*, size_t constantCount, v8::Isolate*);
+    static void installConstant(v8::Handle<v8::FunctionTemplate>, v8::Handle<v8::ObjectTemplate>, const char* name, v8::AccessorGetterCallback, v8::Isolate*);
 
     // MethodConfiguration translates into calls to Set() for setting up an
     // object's callbacks. It sets the method on both the FunctionTemplate or
     // the ObjectTemplate.
     struct MethodConfiguration {
         v8::Local<v8::Name> methodName(v8::Isolate* isolate) const { return v8AtomicString(isolate, name); }
         v8::FunctionCallback callbackForWorld(const DOMWrapperWorld& world) const
         {
             return world.isMainWorld() && callbackForMainWorld ? callbackForMainWorld : callback;
         }
@@ skipping 55 matching lines @@
     {
         target->Set(name, functionTemplate, attribute);
     }
 
     static v8::Handle<v8::FunctionTemplate> functionTemplateForCallback(v8::Handle<v8::Signature>, v8::FunctionCallback, int length, v8::Isolate*);
 };
 
 } // namespace blink
 
 #endif // V8DOMConfiguration_h