Move language detection to a component

chrome/common/chrome_constants.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/common/chrome_constants.h"
 
 #include "base/files/file_path.h"
 
 #define FPL FILE_PATH_LITERAL
 
@@ skipping 200 matching lines @@
 // knowing it.  Enable in debug builds.  Playback mode is allowed always,
 // because it is useful for testing and not hazardous by itself.
 #ifndef NDEBUG
 // const bool kRecordModeEnabled = true;
 #else
 // const bool kRecordModeEnabled = false;
 #endif
 
 const bool kRecordModeEnabled = true;
 
-const char* const kUnknownLanguageCode = "und";
-
 const int kJavaScriptMessageExpectedDelay = 1000;
 
 #if defined(OS_ANDROID)
 const bool kEnableTouchIcon = true;
 #else
 const bool kEnableTouchIcon = false;
 #endif
 
 const float kMaxShareOfExtensionProcesses = 0.30f;
 
@@ skipping 28 matching lines @@
 
 // This GUID is associated with any 'don't ask me again' settings that the
 // user can select for different file types.
 // {2676A9A2-D919-4FEE-9187-152100393AB2}
 const char kApplicationClientIDStringForAVScanning[] =
     "2676A9A2-D919-4FEE-9187-152100393AB2";
 
 }  // namespace chrome
 
 #undef FPL