Track when and how a profile is signed out via UMA.

chrome/browser/sync/profile_sync_service_unittest.cc

 // 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.
 
 #include "base/basictypes.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 190 matching lines @@
         oauth2_token_service,
         behavior));
     service_->SetClearingBrowseringDataForTesting(
         base::Bind(&ProfileSyncServiceTest::ClearBrowsingDataCallback,
                    base::Unretained(this)));
   }
 
 #if defined(OS_WIN) || defined(OS_MACOSX) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
   void CreateServiceWithoutSignIn() {
     CreateService(browser_sync::MANUAL_START);
-    SigninManagerFactory::GetForProfile(profile())->SignOut();
+    SigninManagerFactory::GetForProfile(profile())->SignOut(
+        signin_metrics::SIGNOUT_TEST);
     service()->SetBackupStartDelayForTest(
         base::TimeDelta::FromMilliseconds(100));
   }
 #endif
 
   void ShutdownAndDeleteService() {
     if (service_)
       service_->Shutdown();
     service_.reset();
   }
@@ skipping 201 matching lines @@
   ExpectDataTypeManagerCreation(2);
   ExpectSyncBackendHostCreation(2);
   IssueTestTokens();
   Initialize();
 
   EXPECT_TRUE(service()->sync_initialized());
   EXPECT_FALSE(profile()->GetPrefs()->GetBoolean(
       sync_driver::prefs::kSyncSuppressStart));
   EXPECT_EQ(ProfileSyncService::SYNC, service()->backend_mode());
 
-  SigninManagerFactory::GetForProfile(profile())->SignOut();
+  SigninManagerFactory::GetForProfile(profile())->SignOut(
+      signin_metrics::SIGNOUT_TEST);
   EXPECT_TRUE(service()->sync_initialized());
   EXPECT_EQ(ProfileSyncService::BACKUP, service()->backend_mode());
 }
 #elif !defined (OS_CHROMEOS)
 TEST_F(ProfileSyncServiceTest, EnableSyncAndSignOut) {
   CreateService(browser_sync::AUTO_START);
   ExpectDataTypeManagerCreation(1);
   ExpectSyncBackendHostCreation(1);
   IssueTestTokens();
   Initialize();
 
   EXPECT_TRUE(service()->sync_initialized());
   EXPECT_FALSE(profile()->GetPrefs()->GetBoolean(
       sync_driver::prefs::kSyncSuppressStart));
 
-  SigninManagerFactory::GetForProfile(profile())->SignOut();
+  SigninManagerFactory::GetForProfile(profile())->SignOut(
+      signin_metrics::SIGNOUT_TEST);
   EXPECT_FALSE(service()->sync_initialized());
 }
 #endif  // !defined(OS_CHROMEOS)
 
 TEST_F(ProfileSyncServiceTest, GetSyncTokenStatus) {
   CreateService(browser_sync::AUTO_START);
   IssueTestTokens();
   ExpectDataTypeManagerCreation(1);
   ExpectSyncBackendHostCreation(1);
   Initialize();
@@ skipping 130 matching lines @@
   // See that we can override the URL with a flag.
   CommandLine command_line(
       base::FilePath(base::FilePath(FILE_PATH_LITERAL("chrome.exe"))));
   command_line.AppendSwitchASCII(switches::kSyncServiceURL, "https://foo/bar");
   EXPECT_EQ("https://foo/bar",
             ProfileSyncService::GetSyncServiceURL(command_line).spec());
 }
 
 }  // namespace
 }  // namespace browser_sync