Wait for CefBrowserContext initialization (see issue #2969)

With the Chrome runtime, Profile initialization may be asynchronous. Code that
waited on CefBrowserContext creation now needs to wait on CefBrowserContext
initialization instead.

libcef/common/net/url_util.cc

@@ -0,0 +1,41 @@
+// Copyright (c) 2021 The Chromium Embedded Framework 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 "libcef/common/net/url_util.h"
+
+#include "base/logging.h"
+#include "components/url_formatter/url_fixer.h"
+
+namespace url_util {
+
+GURL MakeGURL(const CefString& url, bool fixup) {
+  GURL gurl = GURL(url.ToString());
+  if (!url.empty() && !gurl.is_valid() && !gurl.has_scheme()) {
+    std::string fixed_scheme(url::kHttpScheme);
+    fixed_scheme.append(url::kStandardSchemeSeparator);
+    std::string new_url = url;
+    new_url.insert(0, fixed_scheme);
+    gurl = GURL(new_url);
+  }
+  if (fixup)
+    FixupGURL(gurl);
+  return gurl;
+}
+
+bool FixupGURL(GURL& gurl) {
+  if (!gurl.is_empty()) {
+    GURL fixup_url =
+        url_formatter::FixupURL(gurl.possibly_invalid_spec(), std::string());
+    if (fixup_url.is_valid()) {
+      gurl = fixup_url;
+    } else {
+      LOG(ERROR) << "Invalid URL: " << gurl.possibly_invalid_spec();
+      gurl = GURL();
+      return false;
+    }
+  }
+  return true;
+}
+
+}  // namespace url_util