signin: pull basic SigninManager functionality into new SigninManagerBase class.

chrome/browser/extensions/api/identity/identity_api.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_EXTENSIONS_API_IDENTITY_IDENTITY_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_IDENTITY_IDENTITY_API_H_
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/extensions/api/identity/identity_mint_queue.h"
 #include "chrome/browser/extensions/api/identity/identity_signin_flow.h"
 #include "chrome/browser/extensions/api/identity/web_auth_flow.h"
 #include "chrome/browser/extensions/api/profile_keyed_api_factory.h"
 #include "chrome/browser/extensions/extension_function.h"
 #include "chrome/browser/extensions/extension_install_prompt.h"
 #include "chrome/browser/signin/signin_global_error.h"
 #include "google_apis/gaia/oauth2_mint_token_flow.h"
 
 class GetAuthTokenFunctionTest;
 class MockGetAuthTokenFunction;
 class GoogleServiceAuthError;
 class Profile;
+class SigninManagerBase;
 
 namespace extensions {
 
 namespace identity_constants {
 extern const char kInvalidClientId[];
 extern const char kInvalidScopes[];
 extern const char kAuthFailure[];
 extern const char kNoGrant[];
 extern const char kUserRejected[];
 extern const char kUserNotSignedIn[];
@@ skipping 150 matching lines @@
  private:
   friend class ProfileKeyedAPIFactory<IdentityAPI>;
 
   // ProfileKeyedAPI implementation.
   static const char* service_name() {
     return "IdentityAPI";
   }
   static const bool kServiceIsNULLWhileTesting = true;
 
   Profile* profile_;
-  SigninManager* signin_manager_;
+  SigninManagerBase* signin_manager_;
   GoogleServiceAuthError error_;
   // Used to listen to notifications from the TokenService.
   content::NotificationRegistrar registrar_;
   IdentityMintRequestQueue mint_queue_;
 };
 
 template <>
 void ProfileKeyedAPIFactory<IdentityAPI>::DeclareFactoryDependencies();
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_IDENTITY_IDENTITY_API_H_