Omnibox improvements and fixes.

chrome/browser/resources/vr_shell/vr_shell_ui.js

Index: chrome/browser/resources/vr_shell/vr_shell_ui.js
diff --git a/chrome/browser/resources/vr_shell/vr_shell_ui.js b/chrome/browser/resources/vr_shell/vr_shell_ui.js
index 99f017c8e5fc4b6c53557484b7daefbc572e55ce..46fd6ba1d6c884bc8d6d5943b51693890de5e91e 100644
--- a/chrome/browser/resources/vr_shell/vr_shell_ui.js
+++ b/chrome/browser/resources/vr_shell/vr_shell_ui.js
@@ -276,12 +276,10 @@ var vrShellUi = (function() {
 
   class Omnibox {
     constructor(contentQuadId) {
-      /** @const */ var VISIBILITY_TIMEOUT_MS = 3000;
-
       this.domUiElement = new DomUiElement('#omni-container');
       this.enabled = false;
       this.secure = false;
-      this.visibilityTimeout = VISIBILITY_TIMEOUT_MS;
+      this.visibilityTimeout = 0;
       this.visibilityTimer = null;
       this.nativeState = {};
 
@@ -400,6 +398,8 @@ var vrShellUi = (function() {
     }
 
     setMode(mode) {
+      /** @const */ var OMNIBOX_VISIBILITY_TIMEOUT_MS = 5000;
+
       this.mode = mode;
       this.contentQuad.setEnabled(
           mode == api.Mode.STANDARD || mode == api.Mode.CINEMA);
@@ -410,6 +410,9 @@ var vrShellUi = (function() {
           mode == api.Mode.STANDARD || mode == api.Mode.CINEMA);
       this.omnibox.setEnabled(
           mode == api.Mode.STANDARD || mode == api.Mode.CINEMA);
+      this.omnibox.setVisibilityTimeout(
+          (mode == api.Mode.STANDARD || mode == api.Mode.CINEMA) ?
+          0 : OMNIBOX_VISIBILITY_TIMEOUT_MS);
       this.secureOriginWarnings.setEnabled(mode == api.Mode.WEB_VR);
     }