Removing base::ThreadRestrictions::ScopedAllowIO from icon_manager_linux.cc

chrome/browser/icon_manager_win.cc

 // Copyright (c) 2009 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/icon_manager.h"
 
 #include "base/file_path.h"
 
-IconGroupID IconManager::GetGroupIDFromFilepath(
+IconGroupID IconManager::ReadGroupIDFromFilepath(
     const base::FilePath& filepath) {
   std::wstring extension = filepath.Extension();
   if (extension != L".exe" && extension != L".dll" && extension != L".ico")
     return extension;
   else
     return filepath.value();
 }