Hook up insecure content warnings for http webVR presentation.

chrome/browser/android/vr_shell/ui_elements/transient_security_warning.cc

Index: chrome/browser/android/vr_shell/ui_elements/transient_security_warning.cc
diff --git a/chrome/browser/android/vr_shell/ui_elements/transient_security_warning.cc b/chrome/browser/android/vr_shell/ui_elements/transient_security_warning.cc
new file mode 100644
index 0000000000000000000000000000000000000000..f69e8311e07bc689f9d016340c990cbb9e878047
--- /dev/null
+++ b/chrome/browser/android/vr_shell/ui_elements/transient_security_warning.cc
@@ -0,0 +1,22 @@
+// 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/transient_security_warning.h"
+
+#include "base/memory/ptr_util.h"
+#include "chrome/browser/android/vr_shell/textures/insecure_content_transient_texture.h"
+
+namespace vr_shell {
+
+TransientSecurityWarning::TransientSecurityWarning(int preferred_width)
+    : TexturedElement(preferred_width),
+      texture_(base::MakeUnique<InsecureContentTransientTexture>()) {}
+
+TransientSecurityWarning::~TransientSecurityWarning() = default;
+
+UiTexture* TransientSecurityWarning::GetTexture() const {
+  return texture_.get();
+}
+
+}  // namespace vr_shell