Add VR gradient and grid background to non-WebVR scene.

chrome/browser/android/vr_shell/ui_elements/ui_element.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_UI_ELEMENTS_UI_ELEMENT_H_
 #define CHROME_BROWSER_ANDROID_VR_SHELL_UI_ELEMENTS_UI_ELEMENT_H_
 
 #include <memory>
 #include <string>
 #include <vector>
@@ skipping 95 matching lines @@
 
   // Controller interaction methods.
   virtual void OnHoverEnter();
   virtual void OnHoverLeave();
   virtual void OnButtonDown();
   virtual void OnButtonUp();
 
   // Valid IDs are non-negative.
   int id = -1;
 
-  // Name string for debugging and testing purposes.
-  std::string name;
-
   // If a non-negative parent ID is specified, applicable transformations
   // are applied relative to the parent, rather than absolutely.
   int parent_id = -1;
 
   // If true, this object will be visible.
   bool visible = true;
 
   // If false, the reticle will not hit the element, even if visible.
   bool hit_testable = true;
 
@@ skipping 47 matching lines @@
   // A flag usable during transformation calculates to avoid duplicate work.
   bool dirty;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(UiElement);
 };
 
 }  // namespace vr_shell
 
 #endif  // CHROME_BROWSER_ANDROID_VR_SHELL_UI_ELEMENTS_UI_ELEMENT_H_