Refactored the URLBlacklistManager to avoid chrome/ and content/ dependencies.

chrome/browser/policy/policy_helpers.cc

+// Copyright 2013 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/policy/policy_helpers.h"
+
+#include "url/gurl.h"
+
+#if !defined(OS_CHROMEOS)
+#include "chrome/browser/signin/signin_manager.h"
+#include "google_apis/gaia/gaia_urls.h"
+#endif
+
+namespace policy {
+
+bool SkipBlacklistForURL(const GURL& url) {
+#if defined(OS_CHROMEOS)
+  return false;
+#else
+  static const char kServiceLoginAuth[] = "/ServiceLoginAuth";
+
+  // Whitelist all the signin flow URLs flagged by the SigninManager.
+  if (SigninManager::IsWebBasedSigninFlowURL(url))
+    return true;
+
+  // Additionally whitelist /ServiceLoginAuth.
+  if (url.GetOrigin() != GaiaUrls::GetInstance()->gaia_url().GetOrigin())
+    return false;
+
+  return url.path() == kServiceLoginAuth;
+#endif
+}
+
+}  // namespace policy