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

chrome/utility/media_galleries/itunes_library_parser.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/utility/media_galleries/itunes_library_parser.h"
 
 #include <stdint.h>
 
 #include <string>
 
@@ skipping 33 matching lines @@
     if (key == "Track ID") {
       return iapps::ReadInteger(reader_, &track_info_->id);
     } else if (key == "Location") {
       std::string value;
       if (!iapps::ReadString(reader_, &value))
         return false;
       GURL url(value);
       if (!url.SchemeIsFile())
         return false;
       url::RawCanonOutputW<1024> decoded_location;
-      url::DecodeURLEscapeSequences(url.path().c_str() + 1,  // Strip /.
-                                    url.path().length() - 1,
-                                    &decoded_location);
+      url::DecodeURLEscapeSequences(
+          url.path().as_string().c_str() + 1,  // Strip /.
+          url.path().as_string().length() - 1, &decoded_location);
 #if defined(OS_WIN)
       base::string16 location(decoded_location.data(),
                               decoded_location.length());
 #else
       base::string16 location16(decoded_location.data(),
                                 decoded_location.length());
       std::string location = "/" + base::UTF16ToUTF8(location16);
 #endif
       track_info_->location = base::FilePath(location);
     } else if (key == "Artist") {
@@ skipping 89 matching lines @@
       track_found = true;
     } else {
       no_errors = false;
     }
   }
 
   return track_found || no_errors;
 }
 
 }  // namespace itunes