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

chrome/browser/ui/views/profiles/supervised_user_avatar_label.cc

 // 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.
 
 #include "chrome/browser/ui/views/profiles/supervised_user_avatar_label.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/themes/theme_properties.h"
 #include "chrome/browser/ui/views/frame/browser_view.h"
 #include "chrome/grit/generated_resources.h"
@@ skipping 91 matching lines @@
   UpdateLabelStyle();
 }
 
 SupervisedUserAvatarLabel::~SupervisedUserAvatarLabel() {}
 
 bool SupervisedUserAvatarLabel::OnMousePressed(const ui::MouseEvent& event) {
   if (!LabelButton::OnMousePressed(event))
     return false;
 
   browser_view_->ShowAvatarBubbleFromAvatarButton(
-      BrowserWindow::AVATAR_BUBBLE_MODE_DEFAULT,
-      signin::ManageAccountsParams());
+      BrowserWindow::AVATAR_BUBBLE_MODE_DEFAULT, signin::ManageAccountsParams(),
+      signin_metrics::ACCESS_POINT_AVATAR_BUBBLE_SIGN_IN);
   return true;
 }
 
 void SupervisedUserAvatarLabel::UpdateLabelStyle() {
   // |browser_view_| can be NULL in unit tests.
   if (!browser_view_)
     return;
 
   SkColor color_label = browser_view_->frame()->GetThemeProvider()->GetColor(
       ThemeProperties::COLOR_SUPERVISED_USER_LABEL);
   for (size_t state = 0; state < STATE_COUNT; ++state)
     SetTextColor(static_cast<ButtonState>(state), color_label);
   SchedulePaint();
 }
 
 void SupervisedUserAvatarLabel::SetLabelOnRight(bool label_on_right) {
   SetBorder(scoped_ptr<views::Border>(
       new SupervisedUserAvatarLabelBorder(label_on_right)));
 }