Modify hit test masks for tabs and tab close buttons

ui/views/rect_based_targeting_utils.h

Index: ui/views/rect_based_targeting_utils.h
diff --git a/ui/views/rect_based_targeting_utils.h b/ui/views/rect_based_targeting_utils.h
index e3f9d115b4c70253cfaccac23a8aa030a4c79773..9f1a96ef1b8e9b8c936bd3bef1fba3fdc048699e 100644
--- a/ui/views/rect_based_targeting_utils.h
+++ b/ui/views/rect_based_targeting_utils.h
@@ -14,6 +14,16 @@ class Rect;
 
 namespace views {
 
+// Specifies the source of the region used in a hit test.
+// HIT_TEST_SOURCE_MOUSE indicates the hit test is being performed with a
+// single point and HIT_TEST_SOURCE_TOUCH indicates the hit test is being
+// performed with a rect larger than a single point. This value can be used,
+// for example, to add extra padding or change the shape of the hit test mask.
+enum HitTestSource {

[Ben Goodger (Google), 2013/11/04 20:14:04]

just go ahead and inline this into View now, as you had before. Now that
Sadrul's shared your plan for refactoring we can do this for time time being.
Please make sure to add a TODO that this is obsoleted by EventTargeter.

[tdanderson, 2013/11/04 20:36:07]

Done.

+  HIT_TEST_SOURCE_MOUSE,
+  HIT_TEST_SOURCE_TOUCH
+};
+
 // Returns true if |rect| is 1x1.
 VIEWS_EXPORT bool UsePointBasedTargeting(const gfx::Rect& rect);