Use default theme resource for aura on Android

chrome/browser/ui/views/theme_image_mapper.cc

 // 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.
 
 #include "chrome/browser/ui/views/theme_image_mapper.h"
 
 #include "grit/theme_resources.h"
 
 namespace chrome {
 
 // On platforms where there is both Ash and a desktop browser, provide DESKTOP
 // resources for the latter.
 int MapThemeImage(HostDesktopType desktop_type, int resource) {
-#if !defined(OS_CHROMEOS) && !defined(OS_MACOSX)
+#if !defined(OS_CHROMEOS) && !defined(OS_MACOSX) && !defined(OS_ANDROID)
   if (desktop_type != HOST_DESKTOP_TYPE_NATIVE)
     return resource;
 
   switch (resource) {
     case IDR_CONTENT_TOP_CENTER:
       return IDR_CONTENT_TOP_CENTER_DESKTOP;
     case IDR_OTR_ICON:
       return IDR_OTR_ICON_DESKTOP;
     case IDR_THEME_FRAME:
       return IDR_THEME_FRAME_DESKTOP;
     case IDR_THEME_FRAME_INACTIVE:
       return IDR_THEME_FRAME_INACTIVE_DESKTOP;
     case IDR_THEME_FRAME_INCOGNITO:
       return IDR_THEME_FRAME_INCOGNITO_DESKTOP;
     case IDR_THEME_FRAME_INCOGNITO_INACTIVE:
       return IDR_THEME_FRAME_INCOGNITO_INACTIVE_DESKTOP;
     case IDR_THEME_TAB_BACKGROUND:
       return IDR_THEME_TAB_BACKGROUND_DESKTOP;
     case IDR_THEME_TAB_BACKGROUND_INCOGNITO:
       return IDR_THEME_TAB_BACKGROUND_INCOGNITO_DESKTOP;
     case IDR_THEME_TOOLBAR:
       return IDR_THEME_TOOLBAR_DESKTOP;
     default:
       break;
   }
 #endif  // !defined(OS_CHROMEOS)

[sky, 2015/10/22 23:00:17]

nit: update this (I would just nuke the comment, I'm personally not a fan of
them for cases like this and as you can see they easily get out of date).

[bshe, 2015/10/23 13:47:58]

Done.

 
   return resource;
 }
 
 }  // namespace chrome