Fixes WebVR presentation from within VRShell.

chrome/browser/android/vr_shell/vr_shell.h

Index: chrome/browser/android/vr_shell/vr_shell.h
diff --git a/chrome/browser/android/vr_shell/vr_shell.h b/chrome/browser/android/vr_shell/vr_shell.h
index ee85024d41b5e947f7d7c22bdf6c20f41c937d39..f9788d6324def9be580617dcdcde9fdd40ddd070 100644
--- a/chrome/browser/android/vr_shell/vr_shell.h
+++ b/chrome/browser/android/vr_shell/vr_shell.h
@@ -204,7 +204,7 @@ class VrShell : public device::PresentingGvrDelegate,
   void MainFrameWasResized(bool width_changed) override;
   void WebContentsDestroyed() override;
 
-  // device::GvrDelegate implementation
+  // device::GvrDelegate implementation.
   void SetWebVRSecureOrigin(bool secure_origin) override;
   void SubmitWebVRFrame(int16_t frame_index,
                         const gpu::MailboxHolder& mailbox) override;
@@ -221,6 +221,10 @@ class VrShell : public device::PresentingGvrDelegate,
       const base::Callback<void(device::mojom::VRDisplayInfoPtr)>& callback,
       uint32_t device_id) override;
 
+  // device::PresentingGvrDelegate implementation.
+  void SetSubmitClient(
+      device::mojom::VRSubmitFrameClientPtr submit_client) override;
+
   void ProcessTabArray(JNIEnv* env, jobjectArray tabs, bool incognito);
 
   bool vr_shell_enabled_;