Fix typo in enterVR failure case, causing incorrect VR exiting.

chrome/android/java/src/org/chromium/chrome/browser/vr_shell/VrShellDelegate.java

Index: chrome/android/java/src/org/chromium/chrome/browser/vr_shell/VrShellDelegate.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/vr_shell/VrShellDelegate.java b/chrome/android/java/src/org/chromium/chrome/browser/vr_shell/VrShellDelegate.java
index c9de3369a951d7e2375507a007dd5dafc6b22abb..891c10a9404d0144491e183ded78327a8c9cfd5b 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/vr_shell/VrShellDelegate.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/vr_shell/VrShellDelegate.java
@@ -164,7 +164,7 @@ public class VrShellDelegate {
         } else {
             if (mRequestedWebVR) nativeSetPresentResult(mNativeVrShellDelegate, false);
             if (!mVrDaydreamApi.exitFromVr(EXIT_VR_RESULT, new Intent())) {
-                mVrShell.setWebVrModeEnabled(false);
+                mVrDaydreamApi.setVrModeEnabled(false);
             }
         }