Additional logging for crash mentioned in crbug.com/422918

chrome/browser/chromeos/login/user_flow.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_CHROMEOS_LOGIN_USER_FLOW_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_USER_FLOW_H_
 
 #include "base/compiler_specific.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chromeos/login/auth/auth_status_consumer.h"
@@ skipping 19 matching lines @@
   virtual bool ShouldShowSettings() = 0;
   virtual bool ShouldLaunchBrowser() = 0;
   virtual bool ShouldSkipPostLoginScreens() = 0;
   virtual bool SupportsEarlyRestartToApplyFlags() = 0;
   virtual bool HandleLoginFailure(const AuthFailure& failure) = 0;
   virtual void HandleLoginSuccess(const UserContext& context) = 0;
   virtual bool HandlePasswordChangeDetected() = 0;
   virtual void HandleOAuthTokenStatusChange(
       user_manager::User::OAuthTokenStatus status) = 0;
   virtual void LaunchExtraSteps(Profile* profile) = 0;
-
-  void set_host(LoginDisplayHost* host) {
-    host_ = host;
-  }
+  void SetHost(LoginDisplayHost* host);
 
   LoginDisplayHost* host() {
     return host_;
   }
 
  private:
   LoginDisplayHost* host_;
 };
 
 // UserFlow implementation for regular login flow.
@@ skipping 33 matching lines @@
     return user_id_;
   }
 
  private:
   std::string user_id_;
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_FLOW_H_