Implement newly designed sign-in related histograms for desktop platorms.

chrome/browser/ui/cocoa/profiles/profile_chooser_controller.h

 // Copyright 2014 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.
 
 #ifndef CHROME_BROWSER_UI_COCOA_PROFILES_PROFILE_CHOOSER_CONTROLLER_H_
 #define CHROME_BROWSER_UI_COCOA_PROFILES_PROFILE_CHOOSER_CONTROLLER_H_
 
 #import <Cocoa/Cocoa.h>
 #include <map>
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/profiles/profile_metrics.h"
 #import "chrome/browser/ui/cocoa/base_bubble_controller.h"
 #include "chrome/browser/ui/profile_chooser_constants.h"
 #include "components/signin/core/browser/signin_header_helper.h"
+#include "components/signin/core/browser/signin_metrics.h"
 
 class AvatarMenu;
 class ActiveProfileObserverBridge;
 class Browser;
 class ProfileOAuth2TokenService;
 
 namespace content {
 class WebContents;
 }
 class GaiaWebContentsDelegate;
@@ skipping 30 matching lines @@
 
   // Web contents used by the inline signin view.
   scoped_ptr<content::WebContents> webContents_;
   scoped_ptr<GaiaWebContentsDelegate> webContentsDelegate_;
 
   // Whether the bubble is displayed for an active guest profile.
   BOOL isGuestSession_;
 
   // The GAIA service type that caused this menu to open.
   signin::GAIAServiceType serviceType_;
+
+  // The current access point of sign in.
+  signin_metrics::AccessPoint accessPoint_;
 }
 
 - (id)initWithBrowser:(Browser*)browser
            anchoredAt:(NSPoint)point
              viewMode:(profiles::BubbleViewMode)viewMode
          tutorialMode:(profiles::TutorialMode)tutorialMode
-          serviceType:(signin::GAIAServiceType)GAIAServiceType;
+          serviceType:(signin::GAIAServiceType)GAIAServiceType
+          accessPoint:(signin_metrics::AccessPoint)accessPoint;
 
 // Creates all the subviews of the avatar bubble for |viewToDisplay|.
 - (void)initMenuContentsWithView:(profiles::BubbleViewMode)viewToDisplay;
 
 // Returns the view currently displayed by the bubble.
 - (profiles::BubbleViewMode)viewMode;
 
 // Sets the tutorial mode of the bubble.
 - (void)setTutorialMode:(profiles::TutorialMode)tutorialMode;
 
@@ skipping 44 matching lines @@
 @interface ProfileChooserController (ExposedForTesting)
 - (id)initWithBrowser:(Browser*)browser
            anchoredAt:(NSPoint)point
              viewMode:(profiles::BubbleViewMode)viewMode
          tutorialMode:(profiles::TutorialMode)tutorialMode
           serviceType:(signin::GAIAServiceType)GAIAServiceType;
 - (IBAction)dismissTutorial:(id)sender;
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_PROFILES_PROFILE_CHOOSER_CONTROLLER_H_