Pipe a script's CORS status through V8 during compilation.

src/objects.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 5855 matching lines @@
   // [compilation_type]: how the the script was compiled. Encoded in the
   // 'flags' field.
   inline CompilationType compilation_type();
   inline void set_compilation_type(CompilationType type);
 
   // [compilation_state]: determines whether the script has already been
   // compiled. Encoded in the 'flags' field.
   inline CompilationState compilation_state();
   inline void set_compilation_state(CompilationState state);
 
+  // [is_shared_cross_origin]: An opaque boolean set by the embedder via
+  // ScriptOrigin, and used by the embedder to make decisions about the
+  // script's level of privilege. V8 just passes this through. Encoded in
+  // the 'flags' field.
+  DECL_BOOLEAN_ACCESSORS(is_shared_cross_origin)
+
   static inline Script* cast(Object* obj);
 
   // If script source is an external string, check that the underlying
   // resource is accessible. Otherwise, always return true.
   inline bool HasValidSource();
 
   // Dispatched behavior.
   DECLARE_PRINTER(Script)
   DECLARE_VERIFIER(Script)
 
@@ skipping 11 matching lines @@
   static const int kEvalFrominstructionsOffsetOffset =
       kEvalFromSharedOffset + kPointerSize;
   static const int kFlagsOffset =
       kEvalFrominstructionsOffsetOffset + kPointerSize;
   static const int kSize = kFlagsOffset + kPointerSize;
 
  private:
   // Bit positions in the flags field.
   static const int kCompilationTypeBit = 0;
   static const int kCompilationStateBit = 1;
+  static const int kIsSharedCrossOriginBit = 2;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(Script);
 };
 
 
 // List of builtin functions we want to identify to improve code
 // generation.
 //
 // Each entry has a name of a global object property holding an object
 // optionally followed by ".prototype", a name of a builtin function
@@ skipping 3972 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_