Add stream operators for URLPattern and URLPatternSet and unit test for URLPatternSet

extensions/common/url_pattern.cc

 // Copyright (c) 2012 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 "extensions/common/url_pattern.h"
 
+#include <ostream>
+
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_piece.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "content/public/common/url_constants.h"
 #include "extensions/common/constants.h"
 #include "url/gurl.h"
 #include "url/url_util.h"
 
 const char URLPattern::kAllUrlsPattern[] = "<all_urls>";
@@ skipping 124 matching lines @@
 }
 
 bool URLPattern::operator>(const URLPattern& other) const {
   return GetAsString() > other.GetAsString();
 }
 
 bool URLPattern::operator==(const URLPattern& other) const {
   return GetAsString() == other.GetAsString();
 }
 
+std::ostream& operator<<(std::ostream& out, const URLPattern& url_pattern) {
+  return out << '"' << url_pattern.GetAsString() << '"';
+}
+
 URLPattern::ParseResult URLPattern::Parse(const std::string& pattern) {
   spec_.clear();
   SetMatchAllURLs(false);
   SetMatchSubdomains(false);
   SetPort("*");
 
   // Special case pattern to match every valid URL.
   if (pattern == kAllUrlsPattern) {
     SetMatchAllURLs(true);
     return PARSE_SUCCESS;
@@ skipping 375 matching lines @@
   }
 
   return result;
 }
 
 // static
 const char* URLPattern::GetParseResultString(
     URLPattern::ParseResult parse_result) {
   return kParseResultMessages[parse_result];
 }