[WIP] make GURL::path() return a StringPiece

components/dom_distiller/core/page_features.cc

 // Copyright 2015 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/page_features.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <string>
@@ skipping 52 matching lines @@
 std::vector<double> CalculateDerivedFeatures(bool isOGArticle,
                                              const GURL& url,
                                              double numElements,
                                              double numAnchors,
                                              double numForms,
                                              const std::string& innerText,
                                              const std::string& textContent,
                                              const std::string& innerHTML) {
   // In the training pipeline, the strings are explicitly encoded in utf-8 (as
   // they are here).
-  const std::string& path = url.path();
+  const std::string& path = url.path().as_string();
   int innerTextWords = GetWordCount(innerText);
   int textContentWords = GetWordCount(textContent);
   int innerHTMLWords = GetWordCount(innerHTML);
   std::vector<double> features;
   // 'opengraph', opengraph,
   features.push_back(isOGArticle);
   // 'forum', 'forum' in path,
   features.push_back(Contains("forum", path));
   // 'index', 'index' in path,
   features.push_back(Contains("index", path));
@@ skipping 105 matching lines @@
 
 std::vector<double> CalculateDerivedFeatures(
     bool openGraph,
     const GURL& url,
     unsigned elementCount,
     unsigned anchorCount,
     unsigned formCount,
     double mozScore,
     double mozScoreAllSqrt,
     double mozScoreAllLinear) {
-  const std::string& path = url.path();
+  const std::string& path = url.path().as_string();
   std::vector<double> features;
   // 'opengraph', opengraph,
   features.push_back(openGraph);
   // 'forum', 'forum' in path,
   features.push_back(Contains("forum", path));
   // 'index', 'index' in path,
   features.push_back(Contains("index", path));
   // 'search', 'search' in path,
   features.push_back(Contains("search", path));
   // 'view', 'view' in path,
@@ skipping 31 matching lines @@
   features.push_back(mozScore);
   // 'mozScoreAllSqrt'
   features.push_back(mozScoreAllSqrt);
   // 'mozScoreAllLinear'
   features.push_back(mozScoreAllLinear);
 
   return features;
 }
 
 }  // namespace dom_distiller