Change single-interface mojo bindings to use SequencedTaskRunner.

chrome/browser/android/vr_shell/non_presenting_gvr_delegate.h

Index: chrome/browser/android/vr_shell/non_presenting_gvr_delegate.h
diff --git a/chrome/browser/android/vr_shell/non_presenting_gvr_delegate.h b/chrome/browser/android/vr_shell/non_presenting_gvr_delegate.h
index bf6d4d104ed6d97528e1d5244ba4e4ebae962ea4..94be994a113300029948eaebb191ebacfe9093b7 100644
--- a/chrome/browser/android/vr_shell/non_presenting_gvr_delegate.h
+++ b/chrome/browser/android/vr_shell/non_presenting_gvr_delegate.h
@@ -13,6 +13,10 @@
 #include "device/vr/vr_service.mojom.h"
 #include "mojo/public/cpp/bindings/binding.h"
 
+namespace base {
+class SingleThreadTaskRunner;
+}
+
 namespace vr_shell {
 
 // A non presenting delegate for magic window mode.