Provide URL-related info to the VR HTML UI.

chrome/browser/android/vr_shell/vr_web_contents_observer.cc

+// 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.
+
+#include "chrome/browser/android/vr_shell/vr_web_contents_observer.h"
+
+#include "chrome/browser/android/vr_shell/ui_interface.h"
+#include "content/public/browser/navigation_handle.h"
+
+namespace vr_shell {
+
+VrWebContentsObserver::VrWebContentsObserver(content::WebContents* web_contents,
+                                             UiInterface* ui_interface)
+    : WebContentsObserver(web_contents),
+      ui_interface_(ui_interface) {}
+
+VrWebContentsObserver::~VrWebContentsObserver() {}
+
+void VrWebContentsObserver::SetUiInterface(UiInterface* ui_interface) {
+  ui_interface_ = ui_interface;
+}
+
+void VrWebContentsObserver::DidStartLoading() {
+  ui_interface_->SetLoading(true);
+}
+
+void VrWebContentsObserver::DidStopLoading() {
+  ui_interface_->SetLoading(false);
+}
+
+void VrWebContentsObserver::DidStartNavigation(
+    content::NavigationHandle* navigation_handle) {
+  ui_interface_->SetURL(navigation_handle->GetURL());
+}
+
+void VrWebContentsObserver::DidRedirectNavigation(
+    content::NavigationHandle* navigation_handle) {
+  ui_interface_->SetURL(navigation_handle->GetURL());
+}
+
+void VrWebContentsObserver::DidFinishNavigation(
+    content::NavigationHandle* navigation_handle) {
+  ui_interface_->SetURL(navigation_handle->GetURL());
+}
+
+}  // namespace vr_shell