[SharedArrayBuffer] Prevent SharedArrayBuffer being used in Web APIs

third_party/WebKit/Source/core/geometry/DOMMatrixReadOnly.cpp

Index: third_party/WebKit/Source/core/geometry/DOMMatrixReadOnly.cpp
diff --git a/third_party/WebKit/Source/core/geometry/DOMMatrixReadOnly.cpp b/third_party/WebKit/Source/core/geometry/DOMMatrixReadOnly.cpp
index fbce2ad2d2ae5c912c00567fb5290af5a00cd883..c5d5cbc13cc0c19f798efef093bef5d6c71beaf7 100644
--- a/third_party/WebKit/Source/core/geometry/DOMMatrixReadOnly.cpp
+++ b/third_party/WebKit/Source/core/geometry/DOMMatrixReadOnly.cpp
@@ -115,27 +115,31 @@ DOMMatrixReadOnly* DOMMatrixReadOnly::create(Vector<double> sequence,
 }
 
 DOMMatrixReadOnly* DOMMatrixReadOnly::fromFloat32Array(
-    DOMFloat32Array* float32Array,
+    const NotShared<DOMFloat32Array>& float32Array,
     ExceptionState& exceptionState) {
-  if (float32Array->length() != 6 && float32Array->length() != 16) {
+  if (float32Array.view()->length() != 6 &&
+      float32Array.view()->length() != 16) {
     exceptionState.throwTypeError(
         "The sequence must contain 6 elements for a 2D matrix or 16 elements a "
         "for 3D matrix.");
     return nullptr;
   }
-  return new DOMMatrixReadOnly(float32Array->data(), float32Array->length());
+  return new DOMMatrixReadOnly(float32Array.view()->data(),
+                               float32Array.view()->length());
 }
 
 DOMMatrixReadOnly* DOMMatrixReadOnly::fromFloat64Array(
-    DOMFloat64Array* float64Array,
+    const NotShared<DOMFloat64Array>& float64Array,
     ExceptionState& exceptionState) {
-  if (float64Array->length() != 6 && float64Array->length() != 16) {
+  if (float64Array.view()->length() != 6 &&
+      float64Array.view()->length() != 16) {
     exceptionState.throwTypeError(
         "The sequence must contain 6 elements for a 2D matrix or 16 elements "
         "for a 3D matrix.");
     return nullptr;
   }
-  return new DOMMatrixReadOnly(float64Array->data(), float64Array->length());
+  return new DOMMatrixReadOnly(float64Array.view()->data(),
+                               float64Array.view()->length());
 }
 
 DOMMatrixReadOnly* DOMMatrixReadOnly::fromMatrix(