Linux/ChromeOS Chromium style checker cleanup, chrome/browser/extensions edition.

chrome/browser/extensions/api/downloads/downloads_api.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 "chrome/browser/extensions/api/downloads/downloads_api.h"
 
 #include <algorithm>
 #include <cctype>
 #include <iterator>
 #include <set>
@@ skipping 225 matching lines @@
     json->SetString(kEndTimeKey, TimeToISO8601(download_item->GetEndTime()));
   // TODO(benjhayden): Implement fileSize.
   json->SetInteger(kFileSizeKey, download_item->GetTotalBytes());
   return scoped_ptr<base::DictionaryValue>(json);
 }
 
 class DownloadFileIconExtractorImpl : public DownloadFileIconExtractor {
  public:
   DownloadFileIconExtractorImpl() {}
 
-  ~DownloadFileIconExtractorImpl() {}
+  virtual ~DownloadFileIconExtractorImpl() {}
 
   virtual bool ExtractIconURLForPath(const FilePath& path,
                                      IconLoader::IconSize icon_size,
                                      IconURLCallback callback) OVERRIDE;
  private:
   void OnIconLoadComplete(gfx::Image* icon);
 
   CancelableTaskTracker cancelable_task_tracker_;
   IconURLCallback callback_;
 };
@@ skipping 889 matching lines @@
   if (profile_->HasOffTheRecordProfile() &&
       !profile_->IsOffTheRecord()) {
     DispatchEventInternal(
         profile_->GetOffTheRecordProfile(),
         event_name,
         json_args,
         scoped_ptr<base::ListValue>(args->DeepCopy()));
   }
   DispatchEventInternal(profile_, event_name, json_args, args.Pass());
 }