Gallery: Match the color of selection UI.

ui/file_manager/gallery/js/slide_mode.js

 // Copyright 2014 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.
 
 'use strict';
 
 /**
  * Slide mode displays a single image and has a set of controls to navigate
  * between the images and to edit an image.
  *
@@ skipping 90 matching lines @@
   this.options_ = util.createChild(
       this.toolbar_.querySelector('.filename-spacer'), 'options');
 
   this.savedLabel_ = util.createChild(this.options_, 'saved');
   this.savedLabel_.textContent = this.displayStringFunction_('GALLERY_SAVED');
 
   var overwriteOriginalBox =
       util.createChild(this.options_, 'overwrite-original');
 
   this.overwriteOriginal_ = util.createChild(
-      overwriteOriginalBox, 'common white', 'input');
+      overwriteOriginalBox, '', 'input');
   this.overwriteOriginal_.type = 'checkbox';
   this.overwriteOriginal_.id = 'overwrite-checkbox';
   util.platform.getPreference(SlideMode.OVERWRITE_KEY, function(value) {
     // Out-of-the box default is 'true'
     this.overwriteOriginal_.checked =
         (typeof value !== 'string' || value === 'true');
   }.bind(this));
   this.overwriteOriginal_.addEventListener('click',
       this.onOverwriteOriginalClick_.bind(this));
 
@@ skipping 1170 matching lines @@
       done = true;
     }
   }.bind(this);
 };
 
 /**
  * If the user touched the image and moved the finger more than SWIPE_THRESHOLD
  * horizontally it's considered as a swipe gesture (change the current image).
  */
 SwipeOverlay.SWIPE_THRESHOLD = 100;