[SharedArrayBuffer] Prevent SharedArrayBuffer being used in Web APIs

third_party/WebKit/Source/core/dom/DOMMatrixReadOnly.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef DOMMatrixReadOnly_h
 #define DOMMatrixReadOnly_h
 
+#include <memory>
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "core/dom/DOMTypedArray.h"
+#include "core/dom/MaybeShared.h"
 #include "platform/heap/Handle.h"
 #include "platform/transforms/TransformationMatrix.h"
-#include <memory>
 
 namespace blink {
 
 class DOMMatrix;
 class DOMMatrixInit;
 class DOMPoint;
 class DOMPointInit;
 
 class CORE_EXPORT DOMMatrixReadOnly
     : public GarbageCollectedFinalized<DOMMatrixReadOnly>,
       public ScriptWrappable {
   DEFINE_WRAPPERTYPEINFO();
 
  public:
   static DOMMatrixReadOnly* create(ExceptionState&);
   static DOMMatrixReadOnly* create(const String&, ExceptionState&);
   static DOMMatrixReadOnly* create(Vector<double>, ExceptionState&);
-  static DOMMatrixReadOnly* fromFloat32Array(DOMFloat32Array*, ExceptionState&);
-  static DOMMatrixReadOnly* fromFloat64Array(DOMFloat64Array*, ExceptionState&);
+  static DOMMatrixReadOnly* fromFloat32Array(
+      const MaybeShared<DOMFloat32Array>&,
+      ExceptionState&);
+  static DOMMatrixReadOnly* fromFloat64Array(
+      const MaybeShared<DOMFloat64Array>&,
+      ExceptionState&);
   static DOMMatrixReadOnly* fromMatrix(DOMMatrixInit&, ExceptionState&);
   virtual ~DOMMatrixReadOnly();
 
   double a() const { return m_matrix->m11(); }
   double b() const { return m_matrix->m12(); }
   double c() const { return m_matrix->m21(); }
   double d() const { return m_matrix->m22(); }
   double e() const { return m_matrix->m41(); }
   double f() const { return m_matrix->m42(); }
 
@@ skipping 88 matching lines @@
   // supports 16-byte alignment but Oilpan doesn't. So we use an std::unique_ptr
   // to allocate TransformationMatrix on PartitionAlloc.
   // TODO(oilpan): Oilpan should support 16-byte aligned allocations.
   std::unique_ptr<TransformationMatrix> m_matrix;
   bool m_is2D;
 };
 
 }  // namespace blink
 
 #endif