1 files changed, 11 insertions, 2 deletions
diff --git a/Source/WebCore/page/Crypto.cpp b/Source/WebCore/page/Crypto.cpp
index 5aaa709bd..335873051 100644
--- a/Source/WebCore/page/Crypto.cpp
+++ b/Source/WebCore/page/Crypto.cpp
@@ -39,6 +39,15 @@
 
 namespace WebCore {
 
+namespace {
+
+bool isIntegerArray(ArrayBufferView* array)
+{
+    return JSC::isInt(array->getType());
+}
+
+}
+
 Crypto::Crypto(Document& document)
     : ContextDestructionObserver(&document)
 {
@@ -50,12 +59,12 @@ Crypto::~Crypto()
 
 Document* Crypto::document() const
 {
-    return downcast<Document>(scriptExecutionContext());
+    return toDocument(scriptExecutionContext());
 }
 
 void Crypto::getRandomValues(ArrayBufferView* array, ExceptionCode& ec)
 {
-    if (!array || !JSC::isInt(array->getType())) {
+    if (!array || !isIntegerArray(array)) {
         ec = TYPE_MISMATCH_ERR;
         return;
     }