Add UMA metrics for profile switching.

chrome/browser/profiles/profile_window.cc

Index: chrome/browser/profiles/profile_window.cc
diff --git a/chrome/browser/profiles/profile_window.cc b/chrome/browser/profiles/profile_window.cc
index 320388f389c31804652867d0be3d406c68773c11..e9f7aae3086eb4763e5209a322d4f483530df78c 100644
--- a/chrome/browser/profiles/profile_window.cc
+++ b/chrome/browser/profiles/profile_window.cc
@@ -270,6 +270,9 @@ void SwitchToProfile(const base::FilePath& path,
                      bool always_create,
                      ProfileManager::CreateCallback callback,
                      ProfileMetrics::ProfileOpen metric) {
+  ProfileMetrics::LogProfileSwitch(metric,
+                                   g_browser_process->profile_manager(),
+                                   path);
   g_browser_process->profile_manager()->CreateProfileAsync(
       path,
       base::Bind(&OpenBrowserWindowForProfile,
@@ -280,13 +283,16 @@ void SwitchToProfile(const base::FilePath& path,
       base::string16(),
       base::string16(),
       std::string());
-  ProfileMetrics::LogProfileSwitchUser(metric);
 }
 
 void SwitchToGuestProfile(chrome::HostDesktopType desktop_type,
                           ProfileManager::CreateCallback callback) {
+  const base::FilePath& path = ProfileManager::GetGuestProfilePath();
+  ProfileMetrics::LogProfileSwitch(ProfileMetrics::SWITCH_PROFILE_GUEST,
+                                   g_browser_process->profile_manager(),
+                                   path);
   g_browser_process->profile_manager()->CreateProfileAsync(
-      ProfileManager::GetGuestProfilePath(),
+      path,
       base::Bind(&OpenBrowserWindowForProfile,
                  callback,
                  false,
@@ -295,7 +301,6 @@ void SwitchToGuestProfile(chrome::HostDesktopType desktop_type,
       base::string16(),
       base::string16(),
       std::string());
-  ProfileMetrics::LogProfileSwitchUser(ProfileMetrics::SWITCH_PROFILE_GUEST);
 }
 
 void CreateAndSwitchToNewProfile(chrome::HostDesktopType desktop_type,