[vte] widget: Correct coordinate check

[Christian Persch <chpe src gnome org>]

commit 722610356d11ad9e5d8fd8e529cc3114b547a5a2
Author: Christian Persch <chpe gnome org>
Date:   Fri Dec 25 21:55:43 2015 +0100

    widget: Correct coordinate check

 src/vte.cc |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)
---
diff --git a/src/vte.cc b/src/vte.cc
index 92a3e8d..a492124 100644
--- a/src/vte.cc
+++ b/src/vte.cc
@@ -5918,11 +5918,10 @@ VteTerminalPrivate::match_hilite(vte::view::coords const& pos)
 {
         auto x = pos.x;
         auto y = pos.y;
-        auto allocation = get_allocated_rect();
 
        /* if the cursor is not above a cell, skip */
-       if (x < 0 || x > allocation.width
-                       || y < 0 || y > allocation.height) {
+       if (x < 0 || x >= m_view_usable_extents.width() ||
+            y < 0 || y >= m_view_usable_extents.height()) {
                return;
        }