VR: Avoiding regeneration of RenderText objects for texture rendering

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 81630ead6d5444734938978feec9465871978240..2e3c08ae75f52bd94d4456d6a13a8eb86ccd5947 100644
--- a/chrome/browser/android/vr_shell/textures/url_bar_texture.h
+++ b/chrome/browser/android/vr_shell/textures/url_bar_texture.h
@@ -5,10 +5,16 @@
 #ifndef CHROME_BROWSER_ANDROID_VR_SHELL_TEXTURES_URL_BAR_TEXTURE_H_
 #define CHROME_BROWSER_ANDROID_VR_SHELL_TEXTURES_URL_BAR_TEXTURE_H_
 
-#include "chrome/browser/android/vr_shell/textures/ui_texture.h"
+#include <memory>
+#include <vector>
 
+#include "chrome/browser/android/vr_shell/textures/ui_texture.h"
 #include "url/gurl.h"
 
+namespace gfx {
+class RenderText;
+}  // namespace gfx
+
 namespace vr_shell {
 
 class UrlBarTexture : public UiTexture {
@@ -30,6 +36,8 @@ class UrlBarTexture : public UiTexture {
   bool hover_ = false;
   int security_level_;
   GURL gurl_;
+  GURL last_drawn_gurl_;
+  std::vector<std::unique_ptr<gfx::RenderText>> gurl_render_texts_;
 };
 
 }  // namespace vr_shell