Bulk update of Google copyright headers in source files.

src/objects-visiting.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:
-//
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-//       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
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
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-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
 
 #ifndef V8_OBJECTS_VISITING_H_
 #define V8_OBJECTS_VISITING_H_
 
 #include "allocation.h"
 
 // This file provides base classes and auxiliary methods for defining
 // static object visitors used during GC.
 // Visiting HeapObject body with a normal ObjectVisitor requires performing
 // two switches on object's instance type to determine object size and layout
@@ skipping 456 matching lines @@
 // access the next-element pointers.
 template <class T>
 Object* VisitWeakList(Heap* heap,
                       Object* list,
                       WeakObjectRetainer* retainer,
                       bool record_slots);
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_VISITING_H_