Bump the theme pack version number.

chrome/browser/themes/browser_theme_pack.cc

Index: chrome/browser/themes/browser_theme_pack.cc
diff --git a/chrome/browser/themes/browser_theme_pack.cc b/chrome/browser/themes/browser_theme_pack.cc
index 931fd46bde056834b68d9bf23b6de6988ee34c06..3f2837e8988911c7efee1b58bf0d6f8d27a56a43 100644
--- a/chrome/browser/themes/browser_theme_pack.cc
+++ b/chrome/browser/themes/browser_theme_pack.cc
@@ -49,7 +49,7 @@ namespace {
 // Version number of the current theme pack. We just throw out and rebuild
 // theme packs that aren't int-equal to this. Increment this number if you
 // change default theme assets.
-const int kThemePackVersion = 40;
+const int kThemePackVersion = 41;
 
 // IDs that are in the DataPack won't clash with the positive integer
 // uint16_t. kHeaderID should always have the maximum value because we want the