Add gesture target fuzzing to views

ui/views/view.h

Index: ui/views/view.h
diff --git a/ui/views/view.h b/ui/views/view.h
index 0f6e33f4d2b9da43f0f1111eea8456362f6775dd..53b92550e696b7f70e724566088f2749552a235a 100644
--- a/ui/views/view.h
+++ b/ui/views/view.h
@@ -1017,6 +1017,15 @@ class VIEWS_EXPORT View : public ui::LayerDelegate,
 
   // Input ---------------------------------------------------------------------
 
+  // Considers all descendant views for which |touchRect| covers at least
+  // views::kFuzzingOverlapPercentage of the area of the view's bounding
+  // rectangle. Among these candidates, |closestOverlappedRect| is set to
+  // be the bounding rectangle that is closest to the center of |touchRect|
+  // using a distance-to-center-line metric. |closestOverlappedRect| remains
+  // empty if there are no such candidates.

[sadrul, 2012/07/16 22:16:14]

I can't say I understand this comment very well ... perhaps could use some
rewording.

[tdanderson, 2012/07/17 19:07:07]

Done.

+  virtual void FindClosestOverlappedRect(const gfx::Rect& touchRect,

[sadrul, 2012/07/16 22:16:14]

touch_rect etc. (chrome doesn't use camelCase).

You want closest_overlapped_rect to either be a Rect* or return gfx::Rect from
the function. Chrome doesn't use non-const reference.

[tdanderson, 2012/07/17 19:07:07]

Done.

+                                         gfx::Rect& closestOverlappedRect);
+
   // Called by HitTest to see if this View has a custom hit test mask. If the
   // return value is true, GetHitTestMask will be called to obtain the mask.
   // Default value is false, in which case the View will hit-test against its