Update behavior of one-click infobar to remove modal dialog, add "undo".

chrome/browser/ui/cocoa/browser_window_cocoa.mm

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/ui/cocoa/browser_window_cocoa.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/mac/mac_util.h"
@@ skipping 434 matching lines @@
                                             bool already_bookmarked) {
   [controller_ showBookmarkBubbleForURL:url
                       alreadyBookmarked:(already_bookmarked ? YES : NO)];
 }
 
 void BrowserWindowCocoa::ShowChromeToMobileBubble() {
   [controller_ showChromeToMobileBubble];
 }
 
 #if defined(ENABLE_ONE_CLICK_SIGNIN)
-
 void BrowserWindowCocoa::ShowOneClickSigninBubble(
-      const base::Closure& learn_more_callback,
-      const base::Closure& advanced_callback) {
+      const base::Callback<void(bool)>& start_sync_callback) {
   OneClickSigninBubbleController* bubble_controller =
       [[OneClickSigninBubbleController alloc]
         initWithBrowserWindowController:cocoa_controller()
-                      learnMoreCallback:learn_more_callback
-                       advancedCallback:advanced_callback];
+                      start_sync_callback:start_sync_callback];
   [bubble_controller showWindow:nil];
 }
 #endif
 
 bool BrowserWindowCocoa::IsDownloadShelfVisible() const {
   return [controller_ isDownloadShelfVisible] != NO;
 }
 
 DownloadShelf* BrowserWindowCocoa::GetDownloadShelf() {
   DownloadShelfController* shelfController = [controller_ downloadShelf];
@@ skipping 187 matching lines @@
   AvatarMenuBubbleController* menu =
       [[AvatarMenuBubbleController alloc] initWithBrowser:browser_
                                                anchoredAt:point];
   [[menu bubble] setAlignment:info_bubble::kAlignEdgeToAnchorEdge];
   [menu showWindow:nil];
 }
 
 void BrowserWindowCocoa::ShowAvatarBubbleFromAvatarButton() {
   [[controller_ avatarButtonController] showAvatarBubble];
 }