Hook up insecure content warnings for http webVR presentation.

chrome/browser/android/vr_shell/ui_elements/permanent_security_warning.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/ui_elements/permanent_security_warning.h"
+
+#include "base/memory/ptr_util.h"
+#include "chrome/browser/android/vr_shell/textures/insecure_content_permanent_texture.h"
+
+namespace vr_shell {
+
+PermanentSecurityWarning::PermanentSecurityWarning(int preferred_width)
+    : TexturedElement(preferred_width),
+      texture_(base::MakeUnique<InsecureContentPermanentTexture>()) {}
+
+PermanentSecurityWarning::~PermanentSecurityWarning() = default;
+
+UiTexture* PermanentSecurityWarning::GetTexture() const {
+  return texture_.get();
+}
+
+}  // namespace vr_shell