Show GAIA/cookie accounts on the signin-internals page.

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 "base/callback_list.h"
 #include "components/keyed_service/core/keyed_service.h"
 #include "components/signin/core/browser/webdata/token_web_data.h"
 
 class PrefService;
 class SigninManagerBase;
 class TokenWebData;
 
 namespace net {
 class CanonicalCookie;
 class URLRequestContextGetter;
 }
 
 #if defined(OS_IOS)
 namespace ios {
 // TODO(msarda): http://crbug.com/358544 Remove this iOS specific code from the
 // core SigninClient.
 class ProfileOAuth2TokenServiceIOSProvider;
 }
 #endif
 
 // An interface that needs to be supplied to the Signin component by its
 // embedder.
 class SigninClient : public KeyedService {
  public:
   typedef base::Callback<void(const net::CanonicalCookie* cookie)>
       CookieChangedCallback;
 
+  typedef base::CallbackList<void(const net::CanonicalCookie* cookie)>
+      CookieChangedCallbackList;
+
   virtual ~SigninClient() {}
 
   // Gets the preferences associated with the client.
   virtual PrefService* GetPrefs() = 0;
 
   // Gets the TokenWebData instance associated with the client.
   virtual scoped_refptr<TokenWebData> GetDatabase() = 0;
 
   // Returns whether it is possible to revoke credentials.
   virtual bool CanRevokeCredentials() = 0;
@@ skipping 12 matching lines @@
   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;
 
-  // Sets the callback that should be called when a cookie changes. The
-  // callback will be called only if it is not empty.
+  // Adds or removes a callback that should be called when a cookie changes.
   // TODO(blundell): Eliminate this interface in favor of having core signin
   // code observe cookie changes once //chrome/browser/net has been
   // componentized.
-  virtual void SetCookieChangedCallback(
-      const CookieChangedCallback& callback) = 0;
+  virtual scoped_ptr<CookieChangedCallbackList::Subscription>
+      AddCookieChangedCallback(const CookieChangedCallback& callback) = 0;
 
   // Called when Google signin has succeeded.
   virtual void GoogleSigninSucceeded(const std::string& username,
                                      const std::string& password) {}
 
   virtual void SetSigninProcess(int host_id) = 0;
   virtual void ClearSigninProcess() = 0;
   virtual bool IsSigninProcess(int host_id) const = 0;
   virtual bool HasSigninProcess() const = 0;
 
 
 #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_