Standardize usage of virtual/override/final in chrome/

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 <string>
 
 #include "base/logging.h"
 #include "base/strings/string16.h"
@@ skipping 14 matching lines @@
   base::FilePath location;
   std::string artist;
   std::string album;
 };
 
 class TrackInfoXmlDictReader : public iapps::XmlDictReader {
  public:
   TrackInfoXmlDictReader(XmlReader* reader, TrackInfo* track_info) :
     iapps::XmlDictReader(reader), track_info_(track_info) {}
 
-  virtual bool ShouldLoop() override {
+  bool ShouldLoop() override {
     return !(Found("Track ID") && Found("Location") &&
              Found("Album Artist") && Found("Album"));
   }
 
-  virtual bool HandleKeyImpl(const std::string& key) override {
+  bool HandleKeyImpl(const std::string& key) override {
     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;
@@ skipping 17 matching lines @@
       track_info_->artist.clear();
       return iapps::ReadString(reader_, &track_info_->artist);
     } else if (key == "Album") {
       return iapps::ReadString(reader_, &track_info_->album);
     } else if (!SkipToNext()) {
       return false;
     }
     return true;
   }
 
-  virtual bool FinishedOk() override {
-    return Found("Track ID") && Found("Location");
-  }
+  bool FinishedOk() override { return Found("Track ID") && Found("Location"); }
 
  private:
   TrackInfo* track_info_;
 };
 
 // Walk through a dictionary filling in |result| with track information. Return
 // true if at least the id and location where found (artist and album may be
 // empty).  In either case, the cursor is advanced out of the dictionary.
 bool GetTrackInfoFromDict(XmlReader* reader, TrackInfo* result) {
   DCHECK(result);
@@ skipping 64 matching lines @@
       track_found = true;
     } else {
       no_errors = false;
     }
   }
 
   return track_found || no_errors;
 }
 
 }  // namespace itunes