Change single-interface mojo bindings to use SequencedTaskRunner.

chrome/browser/android/vr_shell/non_presenting_gvr_delegate.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_ANDROID_VR_SHELL_NON_PRESENTING_GVR_DELEGATE_H_
 #define CHROME_BROWSER_ANDROID_VR_SHELL_NON_PRESENTING_GVR_DELEGATE_H_
 
 #include <jni.h>
 
 #include "base/cancelable_callback.h"
 #include "base/macros.h"
 #include "device/vr/android/gvr/gvr_delegate.h"
 #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.
 class NonPresentingGvrDelegate : public device::GvrDelegate,
                                  public device::mojom::VRVSyncProvider {
  public:
   explicit NonPresentingGvrDelegate(long context);
 
   ~NonPresentingGvrDelegate() override;
 
@@ skipping 37 matching lines @@
   GetVSyncCallback callback_;
   mojo::Binding<device::mojom::VRVSyncProvider> binding_;
   base::WeakPtrFactory<NonPresentingGvrDelegate> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(NonPresentingGvrDelegate);
 };
 
 }  // namespace vr_shell
 
 #endif  // CHROME_BROWSER_ANDROID_VR_SHELL_NON_PRESENTING_GVR_DELEGATE_H_