Provide URL-related info to the VR HTML UI.

chrome/browser/android/vr_shell/vr_shell.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_VR_SHELL_H_
 #define CHROME_BROWSER_ANDROID_VR_SHELL_VR_SHELL_H_
 
 #include <jni.h>
 
 #include <memory>
@@ skipping 21 matching lines @@
 
 namespace vr_shell {
 
 class UiInterface;
 class UiScene;
 class VrCompositor;
 class VrController;
 class VrInputManager;
 class VrShellDelegate;
 class VrShellRenderer;
+class VrWebContentsObserver;
 struct ContentRectangle;
 
 enum UiAction {
   HISTORY_BACK = 0,
   HISTORY_FORWARD,
   RELOAD,
   ZOOM_OUT,
   ZOOM_IN,
   RELOAD_UI
 };
@@ skipping 99 matching lines @@
 
   gvr::Sizei render_size_;
 
   std::queue<base::Callback<void()>> task_queue_;
   base::Lock task_queue_lock_;
 
   std::unique_ptr<VrCompositor> content_compositor_;
   content::WebContents* main_contents_;
   std::unique_ptr<VrCompositor> ui_compositor_;
   content::WebContents* ui_contents_;
+  std::unique_ptr<VrWebContentsObserver> vr_web_contents_observer_;
 
   VrShellDelegate* delegate_ = nullptr;
   std::unique_ptr<VrShellRenderer> vr_shell_renderer_;
   base::android::ScopedJavaGlobalRef<jobject> j_vr_shell_;
 
   bool touch_pending_ = false;
   gvr::Quatf controller_quat_;
 
   gvr::Vec3f target_point_;
   const ContentRectangle* target_element_ = nullptr;
@@ skipping 18 matching lines @@
   base::WeakPtrFactory<VrShell> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(VrShell);
 };
 
 bool RegisterVrShell(JNIEnv* env);
 
 }  // namespace vr_shell
 
 #endif  // CHROME_BROWSER_ANDROID_VR_SHELL_VR_SHELL_H_