1 files changed, 12 insertions, 0 deletions
diff --git a/dom/media/eme/EMEUtils.cpp b/dom/media/eme/EMEUtils.cpp
index 11eb0026e..93e7834e3 100644
--- a/dom/media/eme/EMEUtils.cpp
+++ b/dom/media/eme/EMEUtils.cpp
@@ -5,6 +5,8 @@
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "mozilla/EMEUtils.h"
+
+#include "jsfriendapi.h" // for AutoCheckCannotGC
 #include "mozilla/dom/UnionTypes.h"
 
 namespace mozilla {
@@ -23,6 +25,7 @@ ArrayData
 GetArrayBufferViewOrArrayBufferData(const dom::ArrayBufferViewOrArrayBuffer& aBufferOrView)
 {
   MOZ_ASSERT(aBufferOrView.IsArrayBuffer() || aBufferOrView.IsArrayBufferView());
+  JS::AutoCheckCannotGC nogc;
   if (aBufferOrView.IsArrayBuffer()) {
     const dom::ArrayBuffer& buffer = aBufferOrView.GetAsArrayBuffer();
     buffer.ComputeLengthAndData();
@@ -39,6 +42,7 @@ void
 CopyArrayBufferViewOrArrayBufferData(const dom::ArrayBufferViewOrArrayBuffer& aBufferOrView,
                                      nsTArray<uint8_t>& aOutData)
 {
+  JS::AutoCheckCannotGC nogc;
   ArrayData data = GetArrayBufferViewOrArrayBufferData(aBufferOrView);
   aOutData.Clear();
   if (!data.IsValid()) {
@@ -47,6 +51,14 @@ CopyArrayBufferViewOrArrayBufferData(const dom::ArrayBufferViewOrArrayBuffer& aB
   aOutData.AppendElements(data.mData, data.mLength);
 }
 
+void CopyArrayBufferViewOrArrayBufferData(const dom::ArrayBuffer& aBuffer,
+                                          nsTArray<uint8_t>& aOutData) {
+  JS::AutoCheckCannotGC nogc;
+  aBuffer.ComputeLengthAndData();
+  aOutData.Clear();
+  aOutData.AppendElements(aBuffer.Data(), aBuffer.Length());
+}
+
 bool
 IsClearkeyKeySystem(const nsAString& aKeySystem)
 {