VR: Fix HTTP warning staying visible after exiting WebVR.

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>
 
 #include "base/macros.h"
+#include "chrome/browser/android/vr_shell/ui_elements/ui_element_debug_id.h"
 #include "device/vr/vr_types.h"
 
 namespace base {
 class TimeTicks;
 }
 
 namespace vr_shell {
 
 class Animation;
 class VrShellRenderer;
@@ skipping 201 matching lines @@
     return inheritable_transform_;
   }
   void set_inheritable_transform(const Transform& transform) {
     inheritable_transform_ = transform;
   }
 
   // A flag usable during transformation calculates to avoid duplicate work.
   bool dirty() const { return dirty_; }
   void set_dirty(bool dirty) { dirty_ = dirty; }
 
+  // A flag usable during transformation calculates to avoid duplicate work.
+  UiElementDebugId debug_id() const { return debug_id_; }
+  void set_debug_id(UiElementDebugId debug_id) { debug_id_ = debug_id; }
+
   // By default, sets an element to be visible or not. This may be overridden to
   // allow finer control of element visibility.
   virtual void SetEnabled(bool enabled);
 
  private:
   // Valid IDs are non-negative.
   int id_ = -1;
 
   // 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;
+  bool visible_ = false;
 
   // If false, the reticle will not hit the element, even if visible.
   bool hit_testable_ = true;
 
   // If true, transformations will be applied relative to the field of view,
   // rather than the world.
   bool lock_to_fov_ = false;
 
   // The computed lock to the FoV, incorporating lock of parent objects.
   bool computed_lock_to_fov_ = false;
@@ skipping 34 matching lines @@
   int gridline_count_ = 1;
 
   int draw_phase_ = 1;
 
   // This transform can be used by children to derive position of its parent.
   Transform inheritable_transform_;
 
   // A flag usable during transformation calculates to avoid duplicate work.
   bool dirty_ = false;
 
+  // An identifier used for testing and debugging, in lieu of a string.
+  UiElementDebugId debug_id_ = UiElementDebugId::kNone;
+
   Transform transform_;
 
   DISALLOW_COPY_AND_ASSIGN(UiElement);
 };
 
 }  // namespace vr_shell
 
 #endif  // CHROME_BROWSER_ANDROID_VR_SHELL_UI_ELEMENTS_UI_ELEMENT_H_