--- a/dom/base/BlobSet.h
+++ b/dom/base/BlobSet.h
@@ -7,16 +7,17 @@
 #ifndef mozilla_dom_BlobSet_h
 #define mozilla_dom_BlobSet_h
 
 #include "mozilla/RefPtr.h"
 
 namespace mozilla {
 namespace dom {
 
+class Blob;
 class BlobImpl;
 
 class BlobSet final
 {
 public:
   BlobSet()
     : mData(nullptr)
     , mDataLen(0)

--- a/dom/bluetooth/common/webapi/BluetoothPbapRequestHandle.h
+++ b/dom/bluetooth/common/webapi/BluetoothPbapRequestHandle.h
@@ -5,17 +5,16 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #ifndef mozilla_dom_bluetooth_bluetoothpbaprequesthandle_h
 #define mozilla_dom_bluetooth_bluetoothpbaprequesthandle_h
 
 #include "nsCOMPtr.h"
 #include "mozilla/dom/bluetooth/BluetoothCommon.h"
 #include "mozilla/dom/DOMRequest.h"
-#include "mozilla/dom/BlobSet.h"
 
 namespace mozilla {
   class ErrorResult;
   namespace dom {
     class Blob;
     class DOMRequest;
   }
 }