[vr] Deny permission requests in VR mode

chrome/browser/android/vr_shell/vr_tab_helper.cc

-// Copyright 2017 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_tab_helper.h"
-
-#include "chrome/browser/android/vr_shell/vr_shell_delegate.h"
-#include "content/public/browser/render_view_host.h"
-#include "content/public/common/web_preferences.h"
-#include "device/vr/android/gvr/gvr_delegate_provider.h"
-
-using content::WebContents;
-using content::WebPreferences;
-
-DEFINE_WEB_CONTENTS_USER_DATA_KEY(vr_shell::VrTabHelper);
-
-namespace vr_shell {
-
-VrTabHelper::VrTabHelper(content::WebContents* contents)
-    : web_contents_(contents) {}
-
-VrTabHelper::~VrTabHelper() {}
-
-void VrTabHelper::SetIsInVr(bool is_in_vr) {
-  if (is_in_vr_ == is_in_vr)
-    return;
-
-  is_in_vr_ = is_in_vr;
-
-  WebPreferences web_prefs =
-      web_contents_->GetRenderViewHost()->GetWebkitPreferences();
-  web_prefs.page_popups_suppressed = is_in_vr_;
-  web_contents_->GetRenderViewHost()->UpdateWebkitPreferences(web_prefs);
-}
-
-/* static */
-bool VrTabHelper::IsInVr(content::WebContents* contents) {
-  VrTabHelper* vr_tab_helper = VrTabHelper::FromWebContents(contents);
-  if (!vr_tab_helper) {
-    // This can only happen for unittests.
-    VrTabHelper::CreateForWebContents(contents);
-    vr_tab_helper = VrTabHelper::FromWebContents(contents);
-  }
-  return vr_tab_helper->is_in_vr();
-}
-
-}  // namespace vr_shell