Refresh tabs were 1 DIP wider than spec due to the overlap change.

Bug: none
Change-Id: Ice0fed66fd7176a3b6ae5b356e20a01d839bb30e
Reviewed-on: https://chromium-review.googlesource.com/1137484Reviewed-by: Allen Bauer <kylixrd@chromium.org>
Commit-Queue: Peter Kasting <pkasting@chromium.org>
Cr-Commit-Position: refs/heads/master@{#575343}

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

@@ -1143,7 +1143,9 @@ int Tab::GetMinimumActiveWidth() {
 
 // static
 int Tab::GetStandardWidth() {
-  constexpr int kLayoutWidth[] = {193, 193, 245, 240, 240};
+  constexpr int kRefreshTabWidth = 240 - kSeparatorThickness;
+  constexpr int kLayoutWidth[] = {193, 193, 245, kRefreshTabWidth,
+                                  kRefreshTabWidth};
   return GetOverlap() + kLayoutWidth[MD::GetMode()];
 }