Make tabOverlap dynamic depending on the number of non-mini tabs presented on...

chrome/browser/cocoa/tab_view.mm

Index: chrome/browser/cocoa/tab_view.mm
===================================================================
--- chrome/browser/cocoa/tab_view.mm	(revision 57038)
+++ chrome/browser/cocoa/tab_view.mm	(working copy)
@@ -96,6 +96,10 @@
   return [controller_ menu];
 }
 
+- (BOOL)isMouseIn {
+	return isMouseInside_;
+}
+
 // Overridden so that mouse clicks come to this view (the parent of the
 // hierarchy) first. We want to handle clicks and drags in this class and
 // leave the background button for display purposes only.