Fix fast user switcher appearance when empty.

chrome/browser/profiles/profile_metrics.h

 // 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.
 
 #ifndef CHROME_BROWSER_PROFILES_PROFILE_METRICS_H_
 #define CHROME_BROWSER_PROFILES_PROFILE_METRICS_H_
 
 #include <stddef.h>
 #include <string>
 
@@ skipping 37 matching lines @@
   };
 
   enum ProfileDelete {
     DELETE_PROFILE_SETTINGS = 0,  // Delete profile from settings page.
     DELETE_PROFILE_USER_MANAGER,  // Delete profile from User Manager.
     NUM_DELETE_PROFILE_METRICS
   };
 
   // Enum for counting the ways user profiles and menus were opened.
   enum ProfileOpen {
-    NTP_AVATAR_BUBBLE = 0,    // User opens avatar menu from NTP
-    ICON_AVATAR_BUBBLE,       // User opens the avatar menu from button
-    SWITCH_PROFILE_ICON,      // User switches profiles from icon menu
-    SWITCH_PROFILE_MENU,      // User switches profiles from menu bar
-    SWITCH_PROFILE_DOCK,      // User switches profiles from dock (Mac-only)
-    OPEN_USER_MANAGER,        // User opens the User Manager
-    SWITCH_PROFILE_MANAGER,   // User switches profiles from the User Manager
-    SWITCH_PROFILE_UNLOCK,    // User switches to lockd profile via User Manager
-    SWITCH_PROFILE_GUEST,     // User switches to guest profile
+    // User opens avatar menu from NTP.
+    NTP_AVATAR_BUBBLE = 0,
+    // User opens the avatar menu from button.
+    ICON_AVATAR_BUBBLE,
+    // User switches profiles from icon menu.
+    SWITCH_PROFILE_ICON,
+    // User switches profiles from menu bar.
+    SWITCH_PROFILE_MENU,
+    // User switches profiles from dock (Mac-only).
+    SWITCH_PROFILE_DOCK,
+    // User opens the User Manager.
+    OPEN_USER_MANAGER,
+    // User switches profiles from the User Manager.
+    SWITCH_PROFILE_MANAGER,
+    // User switches to locked profile via User Manager.
+    SWITCH_PROFILE_UNLOCK,
+    // User switches to guest profile.
+    SWITCH_PROFILE_GUEST,
+    // User switches profiles from the Avatar Menu fast user switcher.

[Mike Lerman, 2015/02/20 14:40:57]

s/Avatar Menu/User Menu

[anthonyvd, 2015/02/20 15:01:31]

Done.

+    SWITCH_PROFILE_FAST_SWITCHER,

[Alexei Svitkine (slow), 2015/02/19 22:24:28]

Please update histograms.xml' definition of this enum.

[anthonyvd, 2015/02/20 15:01:31]

Done.

     NUM_PROFILE_OPEN_METRICS
   };
 
   // Enum for getting net counts for adding and deleting users.
   enum ProfileNetUserCounts {
     ADD_NEW_USER = 0,         // Total count of add new user
     PROFILE_DELETED,          // User deleted a profile
     NUM_PROFILE_NET_METRICS
   };
 
@@ skipping 158 matching lines @@
 
   // These functions should only be called on the UI thread because they hook
   // into g_browser_process through a helper function.
   static void LogProfileLaunch(Profile* profile);
   static void LogProfileSyncSignIn(const base::FilePath& profile_path);
   static void LogProfileUpdate(const base::FilePath& profile_path);
 };
 
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_METRICS_H_