Remove some pre-MD code from toolbar/tabstrip/frame.

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 0e09237e2d72b9d9170734294d03b7f6c2a2c2a2..d0fb9bc054349826db71315d5ab3e3e7389a327d 100644
--- a/chrome/browser/ui/views/tabs/tab_strip.cc
+++ b/chrome/browser/ui/views/tabs/tab_strip.cc
@@ -527,8 +527,7 @@ void NewTabButton::PaintFill(bool pressed,
   const int bg_id = tab_strip_->GetBackgroundResourceId(&custom_image);
   // 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 = tp->HasCustomImage(bg_id) ?
-      -GetLayoutConstant(TAB_TOP_EXCLUSION_HEIGHT) : background_offset_.y();
+  const int offset_y = tp->HasCustomImage(bg_id) ? 0 : 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.
   float x_scale = 1.0f;