Also fix new tab button background alignment.

chrome/browser/ui/views/tabs/tab_strip.cc

Index: chrome/browser/ui/views/tabs/tab_strip.cc
diff --git a/chrome/browser/ui/views/tabs/tab_strip.cc b/chrome/browser/ui/views/tabs/tab_strip.cc
index 5fe10f19ac6bb2a12ae82e7044e2b11bc1ccb845..46fee491d34e43093e48e07ff9805841ccdcdbc3 100644
--- a/chrome/browser/ui/views/tabs/tab_strip.cc
+++ b/chrome/browser/ui/views/tabs/tab_strip.cc
@@ -408,7 +408,7 @@ void NewTabButton::PaintFill(bool pressed,
   // For custom tab backgrounds the background starts at the top of the tab
   // strip. Otherwise the background starts at the top of the frame.
   const int offset_y = theme_provider->HasCustomImage(bg_id) ?
-      0 : background_offset_.y();
+      -GetLayoutConstant(TAB_TOP_EXCLUSION_HEIGHT) : background_offset_.y();
 
   // The new tab background is mirrored in RTL mode, but the theme background
   // should never be mirrored. Mirror it here to compensate.