[orca] Improve performance of building flat review context

[Joanmarie Diggs <joanied src gnome org>]

commit 5f0bfce28887920644d859c2c3cc54bc19b97eb3
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Wed Nov 7 16:41:16 2012 -0500

    Improve performance of building flat review context

 src/orca/flat_review.py |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/src/orca/flat_review.py b/src/orca/flat_review.py
index 5eda1e7..65c87e4 100644
--- a/src/orca/flat_review.py
+++ b/src/orca/flat_review.py
@@ -874,7 +874,7 @@ class Context:
         offset = 0
         lastEndOffset = -1
         upperMax = lowerMax = text.characterCount
-        upperMid = lowerMid = upperMax /2
+        upperMid = lowerMid = int(upperMax / 2)
         upperMin = lowerMin = 0
         upperY = lowerY = 0
         oldMid = 0
@@ -890,7 +890,7 @@ class Context:
                 upperMax = upperMid
             else:
                 upperMin = upperMid
-            upperMid = (upperMax - upperMin) /2 + upperMin
+            upperMid = int((upperMax - upperMin) / 2) + upperMin
 
         # performing binary search to locate last line inside clipped area
         oldMid = 0
@@ -905,7 +905,7 @@ class Context:
                 lowerMax = lowerMid
             else:
                 lowerMin = lowerMid
-            lowerMid = (lowerMax - lowerMin) /2 + lowerMin
+            lowerMid = int((lowerMax - lowerMin) / 2) + lowerMin
 
         # finding out the zones
         offset = upperMin