Add support for distilling arbitrary URLs in DOM Distiller Viewer.

components/dom_distiller/core/url_utils.h

+// Copyright 2014 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.
+
+#ifndef COMPONENTS_DOM_DISTILLER_CORE_URL_UTILS_H_
+#define COMPONENTS_DOM_DISTILLER_CORE_URL_UTILS_H_
+
+#include <string>
+
+class GURL;
+
+namespace dom_distiller {
+
+namespace url_utils {
+
+// Returns the URL for viewing distilled content for an entry.
+const GURL GetDistillerViewUrlFromEntryId(const std::string& scheme,
+                                          const std::string& entry_id);
+
+// Returns the URL for viewing distilled content for a URL.
+const GURL GetDistillerViewUrlFromUrl(const std::string& scheme,
+                                      const GURL& view_url);
+
+// Returns the value of the query parameter for the given path.
+std::string GetValueForKeyInUrlPathQuery(const std::string& path,
+                                         const std::string& key);
+
+// Return whether it should be possible to distill the given |url|.
+bool IsUrlDistillable(const GURL& url);
+
+}  // namespace url_utils
+
+}  // namespace dom_distiller
+
+#endif  // COMPONENTS_DOM_DISTILLER_CORE_URL_UTILS_H_