[rAc OSX] Fix reversed use of top and bottom padding.

The coordinate system for the window controller is flipped, but the code was
treating it as though it was unflipped.

BUG=315977
TEST=slightly less padding at top of dialog
R=groby@chromium.org

Review URL: https://codereview.chromium.org/72513003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235682 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/ui/cocoa/autofill/autofill_dialog_cocoa.mm

@@ -455,7 +455,7 @@ void AutofillDialogCocoa::OnConstrainedWindowClosed(
   NSRect contentRect = NSZeroRect;
   contentRect.size = [self preferredSize];
   NSRect clientRect = contentRect;
-  clientRect.origin.y = chrome_style::kClientBottomPadding;
+  clientRect.origin.y = chrome_style::kTitleTopPadding;
   clientRect.size.height -= chrome_style::kTitleTopPadding +
                             chrome_style::kClientBottomPadding;