Show an info icon with a tooltip for PSL-matches in the account chooser on Mac.

chrome/browser/ui/cocoa/passwords/credential_item_button.mm

 // Copyright 2016 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/passwords/credential_item_button.h"
 
 #include "base/i18n/rtl.h"
 #import "base/mac/scoped_nsobject.h"
 #include "base/strings/sys_string_conversions.h"
 #include "chrome/browser/ui/cocoa/passwords/passwords_bubble_utils.h"
@@ skipping 104 matching lines @@
     [cell setHighlightsBy:NSChangeGrayCellMask];
     [self setCell:cell.get()];
 
     [self setBordered:NO];
     [self setFont:ResourceBundle::GetSharedInstance()
                       .GetFontList(ResourceBundle::SmallFont)
                       .GetPrimaryFont()
                       .GetNativeFont()];
     [self setButtonType:NSMomentaryLightButton];
     [self setImagePosition:base::i18n::IsRTL() ? NSImageRight : NSImageLeft];
+    [self setAlignment:NSNaturalTextAlignment];
   }
   return self;
 }
 
 + (NSImage*)defaultAvatar {
   return gfx::NSImageFromImageSkia(ScaleImageForAccountAvatar(
       *ResourceBundle::GetSharedInstance()
            .GetImageNamed(IDR_PROFILE_AVATAR_PLACEHOLDER_LARGE)
            .ToImageSkia()));
 }
 
 - (void)setHoverState:(HoverState)state {
   [super setHoverState:state];
   bool isHighlighted = ([self hoverState] != kHoverStateNone);
 
   NSColor* backgroundColor = isHighlighted ? hoverColor_ : backgroundColor_;
   [[self cell] setBackgroundColor:backgroundColor];
 }
 
 - (BOOL)canBecomeKeyView {
   return YES;
 }
 
 @end