[Mac] Fix page-action positioning for flipped field.

chrome/browser/cocoa/location_bar/location_bar_view_mac.mm

Index: chrome/browser/cocoa/location_bar/location_bar_view_mac.mm
diff --git a/chrome/browser/cocoa/location_bar/location_bar_view_mac.mm b/chrome/browser/cocoa/location_bar/location_bar_view_mac.mm
index b31ce913e67e34d06035e730b9e723b41be1df8f..53e20f2244ba5a1a881fbe05fa4f6daf61eb848e 100644
--- a/chrome/browser/cocoa/location_bar/location_bar_view_mac.mm
+++ b/chrome/browser/cocoa/location_bar/location_bar_view_mac.mm
@@ -314,7 +314,7 @@ NSPoint LocationBarViewMac::GetPageActionBubblePoint(
   NSRect frame = [cell pageActionFrameForIndex:index inFrame:[field_ bounds]];
   if (!NSIsEmptyRect(frame)) {
     frame = [field_ convertRect:frame toView:nil];
-    return NSMakePoint(NSMidX(frame), NSMinY(frame));
+    return NSMakePoint(NSMidX(frame), NSMaxY(frame));
   }
 
   NOTREACHED();