cros: Enable WebUILoginView reuse.

chrome/browser/chromeos/login/ui/web_view_handle.cc

Index: chrome/browser/chromeos/login/ui/web_view_handle.cc
diff --git a/chrome/browser/chromeos/login/ui/web_view_handle.cc b/chrome/browser/chromeos/login/ui/web_view_handle.cc
new file mode 100644
index 0000000000000000000000000000000000000000..45165abd5e606c0a0d6b3873ae598b3f2b147b88
--- /dev/null
+++ b/chrome/browser/chromeos/login/ui/web_view_handle.cc
@@ -0,0 +1,19 @@
+// 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/chromeos/login/ui/web_view_handle.h"
+
+#include "chrome/browser/profiles/profile.h"
+#include "ui/views/controls/webview/webview.h"
+
+namespace chromeos {
+
+WebViewHandle::WebViewHandle(Profile* profile)
+    : web_view_(base::MakeUnique<views::WebView>(profile)) {
+  web_view_->set_owned_by_client();
+}
+
+WebViewHandle::~WebViewHandle() {}
+
+}  // namespace chromeos