Add support for distilling arbitrary URLs in DOM Distiller Viewer.

components/dom_distiller/core/url_utils_unittest.cc

+// 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.
+
+#include "components/dom_distiller/core/url_utils.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace dom_distiller {
+
+namespace url_utils {
+
+TEST(DomDistillerUrlUtilsTest, TestPathUtil) {
+  const std::string single_key = "mypath?foo=bar";
+  EXPECT_EQ("bar", GetValueForKeyInUrlPathQuery(single_key, "foo"));
+  const std::string two_keys = "mypath?key1=foo&key2=bar";
+  EXPECT_EQ("foo", GetValueForKeyInUrlPathQuery(two_keys, "key1"));
+  EXPECT_EQ("bar", GetValueForKeyInUrlPathQuery(two_keys, "key2"));
+  const std::string multiple_same_key = "mypath?key=foo&key=bar";
+  EXPECT_EQ("foo", GetValueForKeyInUrlPathQuery(multiple_same_key, "key"));
+}
+
+}  // namespace url_utils
+
+}  // namespace dom_distiller