Simplify CullRect computation in LineBoxList::hitTest; fixing off-by-one

third_party/WebKit/Source/core/layout/line/LineBoxList.cpp

Index: third_party/WebKit/Source/core/layout/line/LineBoxList.cpp
diff --git a/third_party/WebKit/Source/core/layout/line/LineBoxList.cpp b/third_party/WebKit/Source/core/layout/line/LineBoxList.cpp
index c798d8107dbff4818a685654ec07b59c6d0557c6..045661e60448b806b255d3d0a5f49ea37004351b 100644
--- a/third_party/WebKit/Source/core/layout/line/LineBoxList.cpp
+++ b/third_party/WebKit/Source/core/layout/line/LineBoxList.cpp
@@ -202,10 +202,11 @@ bool LineBoxList::hitTest(LineLayoutBoxModel layoutObject, HitTestResult& result
         return false;
 
     LayoutPoint point = locationInContainer.point();
+    IntRect hitSearchBoundingBox = locationInContainer.boundingBox();
 
     CullRect cullRect(firstLineBox()->isHorizontal() ?
-        IntRect(point.x(), point.y() - locationInContainer.topPadding(), 1, locationInContainer.topPadding() + locationInContainer.bottomPadding() + 1) :
-        IntRect(point.x() - locationInContainer.leftPadding(), point.y(), locationInContainer.rightPadding() + locationInContainer.leftPadding() + 1, 1));
+        IntRect(point.x(), hitSearchBoundingBox.y(), 1, hitSearchBoundingBox.height()) :
+        IntRect(hitSearchBoundingBox.x(), point.y(), hitSearchBoundingBox.width(), 1));
 
     if (!anyLineIntersectsRect(layoutObject, cullRect, accumulatedOffset))
         return false;