Enable new checkbox style by default (Linux/CrOS only)

ui/base/ui_base_switches.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 "ui/base/ui_base_switches.h"
 
 namespace switches {
 
 // Whether or not ImageSkiaOperations methods can scale one of images
 // if they don't have the same scale factor.
@@ skipping 29 matching lines @@
 const char kLang[] = "lang";
 
 // Loads 2x resources. These resource paks currently contain
 // mix of 1x and 2x and loading them may break the UI on 2x display.
 const char kLoad2xResources[] = "load-2x-resources";
 
 // Load the locale resources from the given path. When running on Mac/Unix the
 // path should point to a locale.pak file.
 const char kLocalePak[] = "locale_pak";
 
-// Enables a new appearance for checkboxes and radio buttons.
-const char kNewCheckboxStyle[]           = "new-checkbox-style";
+// Disables the new appearance for checkboxes and radio buttons.
+const char kOldCheckboxStyle[]           = "old-checkbox-style";
 
 // Disable ui::MessageBox. This is useful when running as part of scripts that
 // do not have a user interface.
 const char kNoMessageBox[] = "no-message-box";
 
 // Enables UI changes that make it easier to use with a touchscreen.
 // WARNING: Do not check this flag directly when deciding what UI to draw,
 // instead you must call ui::GetDisplayLayout
 const char kTouchOptimizedUI[]              = "touch-optimized-ui";
 
@@ skipping 16 matching lines @@
 #endif
 
 #if defined(TOOLKIT_VIEWS) && defined(OS_LINUX)
 // Tells chrome to interpret events from these devices as touch events. Only
 // available with XInput 2 (i.e. X server 1.8 or above). The id's of the
 // devices can be retrieved from 'xinput list'.
 const char kTouchDevices[] = "touch-devices";
 #endif
 
 }  // namespace switches