Implementation of SigninClient::GetSigninScopedDeviceId

components/signin/core/browser/signin_client.h

 // Copyright 2014 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 COMPONENTS_SIGNIN_CORE_BROWSER_SIGNIN_CLIENT_H_
 #define COMPONENTS_SIGNIN_CORE_BROWSER_SIGNIN_CLIENT_H_
 
 #include "base/callback.h"
 #include "components/keyed_service/core/keyed_service.h"
 #include "components/signin/core/browser/webdata/token_web_data.h"
@@ skipping 32 matching lines @@
 
   // Returns whether it is possible to revoke credentials.
   virtual bool CanRevokeCredentials() = 0;
 
   // Returns device id that is scoped to single signin. This device id will be
   // regenerated if user signs out and signs back in.
   // When refresh token is requested for this user it will be annotated with
   // this device id.
   virtual std::string GetSigninScopedDeviceId() = 0;
 
+  // Clears signin scoped device id. This happens when user signs out or about
+  // to sign in.
+  virtual void ClearSigninScopedDeviceId() = 0;
+
   // Returns the URL request context information associated with the client.
   virtual net::URLRequestContextGetter* GetURLRequestContext() = 0;
 
   // Returns whether the user's credentials should be merged into the cookie
   // jar on signin completion.
   virtual bool ShouldMergeSigninCredentialsIntoCookieJar() = 0;
 
   // Returns a string containing the version info of the product in which the
   // Signin component is being used.
   virtual std::string GetProductVersion() = 0;
@@ skipping 17 matching lines @@
 
 
 #if defined(OS_IOS)
   // TODO(msarda): http://crbug.com/358544 Remove this iOS specific code from
   // the core SigninClient.
   virtual ios::ProfileOAuth2TokenServiceIOSProvider* GetIOSProvider() = 0;
 #endif
 };
 
 #endif  // COMPONENTS_SIGNIN_CORE_BROWSER_SIGNIN_CLIENT_H_