Change default frame colors. Change custom titlebar colors on Windows.

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 7da11d3af2e8584edb82f89992d943339626056b..503c9181a2f24d2989095fbdbe5d9ccd242f8b8e 100644
--- a/chrome/browser/themes/browser_theme_pack.cc
+++ b/chrome/browser/themes/browser_theme_pack.cc
@@ -49,7 +49,7 @@ namespace {
 // theme packs that aren't int-equal to this. Increment this number if you
 // change default theme assets or if you need themes to recreate their generated
 // images (which are cached).
-const int kThemePackVersion = 44;
+const int kThemePackVersion = 45;
 
 // 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