Navigator.cpp.patch

diff --git a/dom/base/Navigator.cpp b/dom/base/Navigator.cpp
--- a/dom/base/Navigator.cpp
+++ b/dom/base/Navigator.cpp
@@ -27,16 +27,17 @@
 #include "nsICookiePermission.h"
 #include "nsIScriptSecurityManager.h"
 #include "nsCharSeparatedTokenizer.h"
 #include "nsContentUtils.h"
 #include "nsUnicharUtils.h"
 #include "mozilla/Preferences.h"
 #include "mozilla/Telemetry.h"
 #include "BatteryManager.h"
+#include "mozilla/dom/CredentialContainer.h"
 #include "mozilla/dom/DeviceStorageAreaListener.h"
 #include "mozilla/dom/PowerManager.h"
 #include "mozilla/dom/WakeLock.h"
 #include "mozilla/dom/power/PowerManagerService.h"
 #include "mozilla/dom/CellBroadcast.h"
 #include "mozilla/dom/IccManager.h"
 #include "mozilla/dom/InputPortManager.h"
 #include "mozilla/dom/MobileMessageManager.h"
@@ -1097,16 +1098,27 @@ Navigator::GetDeviceStorageByNameAndType
     return nullptr;
   }
 
   mDeviceStorageStores.AppendElement(
     do_GetWeakReference(static_cast<DOMEventTargetHelper*>(storage)));
   return storage.forget();
 }
 
+CredentialContainer*
+Navigator::Credentials()
+{
+  if (mCredentialContainer) {
+    return mCredentialContainer;
+  }
+
+  mCredentialContainer = new CredentialContainer(mWindow);
+  return mCredentialContainer;
+}
+
 Geolocation*
 Navigator::GetGeolocation(ErrorResult& aRv)
 {
   if (mGeolocation) {
     return mGeolocation;
   }
 
   if (!mWindow || !mWindow->GetOuterWindow() || !mWindow->GetDocShell()) {