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

chrome/browser/ui/webui/sync_setup_handler_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 "chrome/browser/ui/webui/sync_setup_handler.h"
 
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/json/json_writer.h"
@@ skipping 387 matching lines @@
 #if !defined(OS_CHROMEOS)
 TEST_F(SyncSetupHandlerFirstSigninTest, DisplayBasicLogin) {
   EXPECT_CALL(*mock_pss_, IsSyncEnabledAndLoggedIn())
       .WillRepeatedly(Return(false));
   EXPECT_CALL(*mock_pss_, IsOAuthRefreshTokenAvailable())
       .WillRepeatedly(Return(false));
   EXPECT_CALL(*mock_pss_, HasSyncSetupCompleted())
       .WillRepeatedly(Return(false));
   // Ensure that the user is not signed in before calling |HandleStartSignin()|.
   SigninManager* manager = static_cast<SigninManager*>(mock_signin_);
-  manager->SignOut();
+  manager->SignOut(signin_metrics::SIGNOUT_TEST);
   handler_->HandleStartSignin(NULL);
 
   // Sync setup hands off control to the gaia login tab.
   EXPECT_EQ(NULL,
             LoginUIServiceFactory::GetForProfile(
                 profile_.get())->current_login_ui());
 
   ASSERT_FALSE(handler_->is_configuring_sync());
 
   handler_->CloseSyncSetup();
@@ skipping 634 matching lines @@
 
   // This should display the sync setup dialog (not login).
   handler_->OpenSyncSetup();
 
   ExpectConfig();
   const TestWebUI::CallData& data = web_ui_.call_data()[0];
   base::DictionaryValue* dictionary;
   ASSERT_TRUE(data.arg2->GetAsDictionary(&dictionary));
   CheckBool(dictionary, "encryptAllData", true);
 }