VR: Add a loading indicator to the scene.

chrome/browser/android/vr_shell/textures/url_bar_texture.h

Index: chrome/browser/android/vr_shell/textures/url_bar_texture.h
diff --git a/chrome/browser/android/vr_shell/textures/url_bar_texture.h b/chrome/browser/android/vr_shell/textures/url_bar_texture.h
index 0204d8640ceefd74ba25143878972cf2f92fa0d8..c85e806f942fad9de35bc9ee0659b085bc58f37e 100644
--- a/chrome/browser/android/vr_shell/textures/url_bar_texture.h
+++ b/chrome/browser/android/vr_shell/textures/url_bar_texture.h
@@ -32,14 +32,11 @@ class UrlBarTexture : public UiTexture {
   void SetURL(const GURL& gurl);
   void SetSecurityLevel(int level);
 
-  bool dirty() const { return dirty_; }
-
  private:
   void Draw(SkCanvas* canvas, const gfx::Size& texture_size) override;
   float ToPixels(float meters) const;
 
   gfx::SizeF size_;
-  bool dirty_ = false;
   int security_level_;
   GURL gurl_;
   GURL last_drawn_gurl_;