UMA Metrics for the user menu, including vasquette-detection

chrome/browser/profiles/profile_metrics.h

Index: chrome/browser/profiles/profile_metrics.h
diff --git a/chrome/browser/profiles/profile_metrics.h b/chrome/browser/profiles/profile_metrics.h
index 174c203c239affe270a5e0092e43b6a61ca85ab5..9d388f15c3f2b557bf92e91f67d78f5c12e97ad4 100644
--- a/chrome/browser/profiles/profile_metrics.h
+++ b/chrome/browser/profiles/profile_metrics.h
@@ -96,6 +96,21 @@ class ProfileMetrics {
     NUM_PROFILE_ENROLLMENT_METRICS,
   };
 
+  // Enum for tracking user interactions with the user menu and user manager.
+  // Interactions initiated from the content area are logged into a different
+  // histogram from those that were initiated from the avatar button.
+  // An example of the interaction beginning in the content area is
+  // clicking "Manage Accounts" within account selection on a Google property.
+  enum ProfileDesktopSignout {
+    // User opened the user menu, and clicked lock.
+    PROFILE_DESKTOP_MENU_LOCK = 0,
+    // User opened the user menu, and started removing an account.
+    PROFILE_DESKTOP_MENU_REMOVE_ACCT,
+    // User opened the user menu, and started adding an account.
+    PROFILE_DESKTOP_MENU_ADD_ACCT,
+    NUM_PROFILE_DESKTOP_SIGNOUT_METRICS,
+  };
+
   static void UpdateReportedProfilesStatistics(ProfileManager* manager);
 
   static void LogNumberOfProfiles(ProfileManager* manager);
@@ -108,6 +123,8 @@ class ProfileMetrics {
   static void LogProfileSyncInfo(ProfileSync metric);
   static void LogProfileAuthResult(ProfileAuth metric);
   static void LogProfileUpgradeEnrollment(ProfileUpgradeEnrollment metric);
+  static void LogProfileDesktopSignout(ProfileDesktopSignout metric,
+                                       bool opened_from_content);
 
   // These functions should only be called on the UI thread because they hook
   // into g_browser_process through a helper function.