[SharedArrayBuffer] Prevent SharedArrayBuffer being used in Web APIs

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

Index: third_party/WebKit/Source/core/geometry/DOMMatrix.cpp
diff --git a/third_party/WebKit/Source/core/geometry/DOMMatrix.cpp b/third_party/WebKit/Source/core/geometry/DOMMatrix.cpp
index 8af26a523d5764c33f6f8c511de63ad41cf188c2..13a4aaa4cca35ca3e2b541bcd2c1fd9fa386eeea 100644
--- a/third_party/WebKit/Source/core/geometry/DOMMatrix.cpp
+++ b/third_party/WebKit/Source/core/geometry/DOMMatrix.cpp
@@ -39,26 +39,32 @@ DOMMatrix* DOMMatrix::create(Vector<double> sequence,
   return new DOMMatrix(sequence, sequence.size());
 }
 
-DOMMatrix* DOMMatrix::fromFloat32Array(DOMFloat32Array* float32Array,
-                                       ExceptionState& exceptionState) {
-  if (float32Array->length() != 6 && float32Array->length() != 16) {
+DOMMatrix* DOMMatrix::fromFloat32Array(
+    const NotShared<DOMFloat32Array>& float32Array,
+    ExceptionState& exceptionState) {
+  if (float32Array.view()->length() != 6 &&
+      float32Array.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 DOMMatrix(float32Array->data(), float32Array->length());
+  return new DOMMatrix(float32Array.view()->data(),
+                       float32Array.view()->length());
 }
 
-DOMMatrix* DOMMatrix::fromFloat64Array(DOMFloat64Array* float64Array,
-                                       ExceptionState& exceptionState) {
-  if (float64Array->length() != 6 && float64Array->length() != 16) {
+DOMMatrix* DOMMatrix::fromFloat64Array(
+    const NotShared<DOMFloat64Array>& float64Array,
+    ExceptionState& exceptionState) {
+  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 DOMMatrix(float64Array->data(), float64Array->length());
+  return new DOMMatrix(float64Array.view()->data(),
+                       float64Array.view()->length());
 }
 
 template <typename T>