Align the Mac Omnibox items vertically again.

chrome/browser/ui/cocoa/omnibox/omnibox_popup_matrix.mm

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "chrome/browser/ui/cocoa/omnibox/omnibox_popup_matrix.h"
 
 #include "base/logging.h"
 #include "base/mac/foundation_util.h"
 #import "chrome/browser/ui/cocoa/omnibox/omnibox_popup_cell.h"
 #include "chrome/browser/ui/cocoa/omnibox/omnibox_popup_view_mac.h"
@@ skipping 134 matching lines @@
         OmniboxPopupViewMac::BackgroundColor(hasDarkTheme_);
     [self setBackgroundColor:backgroundColor];
     [self setAllowsEmptySelection:YES];
     [self deselectAll:self];
 
     [self resetTrackingArea];
 
     base::scoped_nsobject<NSLayoutManager> layoutManager(
         [[NSLayoutManager alloc] init]);
     answerLineHeight_ =
-        [layoutManager defaultLineHeightForFont:OmniboxViewMac::GetLargeFont()];
+        [layoutManager defaultLineHeightForFont:OmniboxViewMac::GetLargeFont(

[tapted, 2016/06/14 05:51:34]

defaultLineHeightForFont has a rounding bug - see
https://codereview.chromium.org/1252893002 -- but I don't think that's it.

+                                                    gfx::Font::NORMAL,
+                                                    gfx::Font::Weight::NORMAL)];
   }
+
   return self;
 }
 
 - (OmniboxPopupTableController*)controller {
   return base::mac::ObjCCastStrict<OmniboxPopupTableController>(
       [self delegate]);
 }
 
 - (void)setObserver:(OmniboxPopupMatrixObserver*)observer {
   observer_ = observer;
@@ skipping 131 matching lines @@
   [self selectRowIndex:row];
   if (row != -1) {
     DCHECK(observer_);
     observer_->OnMatrixRowSelected(self, row);
     return YES;
   }
   return NO;
 }
 
 @end