Adds end-to-end tests for VrShell navigation transitions.

chrome/browser/android/vr_shell/vr_shell.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_shell.h"
 
 #include <android/native_window_jni.h>
 
 #include <string>
 #include <utility>
@@ skipping 258 matching lines @@
     metrics_helper_->SetWebVREnabled(enabled);
   PostToGlThreadWhenReady(base::Bind(&VrShellGl::SetWebVrMode,
                                      gl_thread_->GetVrShellGl(), enabled));
 
   ui_->SetMode(enabled ? UiInterface::Mode::WEB_VR
                        : UiInterface::Mode::STANDARD);
   PostToGlThreadWhenReady(base::Bind(&UiSceneManager::SetWebVRMode,
                                      gl_thread_->GetSceneManager(), enabled));
 }
 
+bool VrShell::GetWebVrMode(JNIEnv* env,
+                           const base::android::JavaParamRef<jobject>& obj) {
+  return webvr_mode_;
+}
+
 void VrShell::OnLoadProgressChanged(JNIEnv* env,
                                     const JavaParamRef<jobject>& obj,
                                     double progress) {
   ui_->SetLoadProgress(progress);
 }
 
 void VrShell::OnTabListCreated(JNIEnv* env,
                                const JavaParamRef<jobject>& obj,
                                jobjectArray tabs,
                                jobjectArray incognito_tabs) {
@@ skipping 276 matching lines @@
            jboolean for_web_vr,
            jlong gvr_api,
            jboolean reprojected_rendering) {
   return reinterpret_cast<intptr_t>(new VrShell(
       env, obj, reinterpret_cast<ui::WindowAndroid*>(window_android),
       for_web_vr, VrShellDelegate::GetNativeVrShellDelegate(env, delegate),
       reinterpret_cast<gvr_context*>(gvr_api), reprojected_rendering));
 }
 
 }  // namespace vr_shell