Add "Sign In" button to the account chooser on Mac.

chrome/browser/ui/cocoa/passwords/autosignin_prompt_view_controller.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/autosignin_prompt_view_controller.h"
 
 #include <Carbon/Carbon.h>
 
 #include "base/logging.h"
 #include "base/mac/scoped_nsobject.h"
 #include "base/strings/string16.h"
 #import "chrome/browser/ui/cocoa/key_equivalent_constants.h"
 #import "chrome/browser/ui/cocoa/passwords/passwords_bubble_utils.h"
 #include "chrome/browser/ui/passwords/password_dialog_controller.h"
 #include "chrome/browser/ui/passwords/password_dialog_prompts.h"
 #include "chrome/grit/generated_resources.h"
 #include "ui/base/cocoa/controls/hyperlink_text_view.h"
 #include "ui/base/l10n/l10n_util.h"
 
-namespace {
-
-// Returns a NSRegularControlSize button. It's used for improving the contrast
-// due to Accessabilty standards.
-NSButton* BiggerDialogButton(NSString* title) {
-  base::scoped_nsobject<NSButton> button(
-      [[NSButton alloc] initWithFrame:NSZeroRect]);
-  CGFloat fontSize = [NSFont systemFontSizeForControlSize:NSRegularControlSize];
-  [button setFont:[NSFont systemFontOfSize:fontSize]];
-  [button setTitle:title];
-  [button setBezelStyle:NSRoundedBezelStyle];
-  [[button cell] setControlSize:NSRegularControlSize];
-  [button sizeToFit];
-  return button.autorelease();
-}
-
-}  // namespace
-
 @interface AutoSigninPromptView : NSView
 @property (nonatomic, copy) BOOL (^escHandler)(NSEvent* theEvent);
 @end
 
 @implementation AutoSigninPromptView
 @synthesize escHandler = _escHandler;
 
 -(void)dealloc {
   [_escHandler release];
   [super dealloc];
@@ skipping 149 matching lines @@
 }
 
 - (NSButton*)okButton {
   return _okButton;
 }
 
 - (NSButton*)turnOffButton {
   return _turnOffButton;
 }
 @end