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

chrome/browser/ui/cocoa/one_click_signin_bubble_controller.h

Index: chrome/browser/ui/cocoa/one_click_signin_bubble_controller.h
diff --git a/chrome/browser/ui/cocoa/one_click_signin_bubble_controller.h b/chrome/browser/ui/cocoa/one_click_signin_bubble_controller.h
index 0a0261b36464c3ec2c452936d4c4889f1733adaf..54947435c8710f0567ae018dd0eeb9230584318b 100644
--- a/chrome/browser/ui/cocoa/one_click_signin_bubble_controller.h
+++ b/chrome/browser/ui/cocoa/one_click_signin_bubble_controller.h
@@ -18,11 +18,12 @@
 @interface OneClickSigninBubbleController : BaseBubbleController {
  @private
   IBOutlet NSTextField* messageField_;
+  // TODO(akalin): learnMoreLink_ needs to be removed, but it can't until
+  // the nib is changed too.
   IBOutlet NSButton* learnMoreLink_;
   IBOutlet NSButton* advancedLink_;
 
-  base::Closure learnMoreCallback_;
-  base::Closure advancedCallback_;
+  base::Callback<void(bool)> start_sync_callback_;
 }
 
 // Initializes with a browser window controller, under whose wrench
@@ -32,14 +33,15 @@
 // The bubble is not automatically displayed; call showWindow:id to
 // display.  The bubble is auto-released on close.
 - (id)initWithBrowserWindowController:(BrowserWindowController*)controller
-                    learnMoreCallback:(const base::Closure&)learnMoreCallback
-                     advancedCallback:(const base::Closure&)advancedCallback;
+    start_sync_callback:(const base::Callback<void(bool)>&)start_sync_callback;
 
-// Just closes the bubble.
+// Starts sync and closes the bubble.
 - (IBAction)ok:(id)sender;
 
-// Calls |learnMoreCallback_|.
-- (IBAction)onClickLearnMoreLink:(id)sender;
+// Just closes the bubble.
+// TODO(akalin): The following line should be uncommented once the nib is

[akalin, 2012/05/18 17:57:03]

I think you should just remove this completely, and have the TODO be to hook up
the Undo button to close the dialog. (It might be possible to do that completely
in the .nib)

[Roger Tawa OOO till Jul 10th, 2012/05/23 17:13:02]

Done.

+// also changed.
+// - (IBAction)undo:(id)sender;
 
 // Calls |advancedCallback_|.
 - (IBAction)onClickAdvancedLink:(id)sender;