"Fix" remaining connection error handlers in Blink

third_party/WebKit/Source/modules/notifications/NotificationManager.cpp

Index: third_party/WebKit/Source/modules/notifications/NotificationManager.cpp
diff --git a/third_party/WebKit/Source/modules/notifications/NotificationManager.cpp b/third_party/WebKit/Source/modules/notifications/NotificationManager.cpp
index c5b8ca30724752d6348574a47b7ee1b13118f540..66d2a76a50026f012cd35060390f342f387ec2db 100644
--- a/third_party/WebKit/Source/modules/notifications/NotificationManager.cpp
+++ b/third_party/WebKit/Source/modules/notifications/NotificationManager.cpp
@@ -104,6 +104,10 @@ void NotificationManager::onPermissionRequestComplete(
 }
 
 void NotificationManager::onPermissionServiceConnectionError() {
+  if (!Platform::current()) {
+    // TODO(rockot): Clean this up once renderer shutdown sequence is fixed.
+    return;
+  }
   m_permissionService.reset();
 }