Refactor AO2TS to make it easier to componentize.

google_apis/gaia/fake_oauth2_token_service.cc

 // 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.
 
 #include "google_apis/gaia/fake_oauth2_token_service.h"
 
 FakeOAuth2TokenService::PendingRequest::PendingRequest() {
 }
 
 FakeOAuth2TokenService::PendingRequest::~PendingRequest() {
 }
 
-FakeOAuth2TokenService::FakeOAuth2TokenService() : request_context_(NULL) {
+FakeOAuth2TokenService::FakeOAuth2TokenService()
+    : OAuth2TokenService(new FakeOAuth2TokenServiceDelegate(nullptr)) {
 }
 
 FakeOAuth2TokenService::~FakeOAuth2TokenService() {
 }
 
-std::vector<std::string> FakeOAuth2TokenService::GetAccounts() {
-  return std::vector<std::string>(account_ids_.begin(), account_ids_.end());
-}
-
 void FakeOAuth2TokenService::FetchOAuth2Token(
     RequestImpl* request,
     const std::string& account_id,
     net::URLRequestContextGetter* getter,
     const std::string& client_id,
     const std::string& client_secret,
     const ScopeSet& scopes) {
   PendingRequest pending_request;
   pending_request.account_id = account_id;
   pending_request.client_id = client_id;
   pending_request.client_secret = client_secret;
   pending_request.scopes = scopes;
   pending_request.request = request->AsWeakPtr();
   pending_requests_.push_back(pending_request);
 }
 
-void FakeOAuth2TokenService::InvalidateOAuth2Token(
+void FakeOAuth2TokenService::InvalidateAccessTokenImpl(
     const std::string& account_id,
     const std::string& client_id,
     const ScopeSet& scopes,
     const std::string& access_token) {
 }
 
-net::URLRequestContextGetter* FakeOAuth2TokenService::GetRequestContext() {
-  return request_context_;
-}
-
-bool FakeOAuth2TokenService::RefreshTokenIsAvailable(
-    const std::string& account_id) const {
-  return account_ids_.count(account_id) != 0;
-};
-
 void FakeOAuth2TokenService::AddAccount(const std::string& account_id) {
-  account_ids_.insert(account_id);
-  FireRefreshTokenAvailable(account_id);
+  GetDelegate()->UpdateCredentials(account_id, "fake_refresh_token");
 }
 
 void FakeOAuth2TokenService::RemoveAccount(const std::string& account_id) {
-  account_ids_.erase(account_id);
-  FireRefreshTokenRevoked(account_id);
+  GetDelegate()->RevokeCredentials(account_id);
 }
 
 void FakeOAuth2TokenService::IssueAllTokensForAccount(
     const std::string& account_id,
     const std::string& access_token,
     const base::Time& expiration) {
   // Walk the requests and notify the callbacks.
   // Using a copy of pending requests to make sure a new token request triggered
   // from the handling code does not invalidate the iterator.
   std::vector<PendingRequest> pending_requests_copy = pending_requests_;
@@ skipping 16 matching lines @@
   std::vector<PendingRequest> pending_requests_copy = pending_requests_;
   for (std::vector<PendingRequest>::iterator it = pending_requests_copy.begin();
        it != pending_requests_copy.end();
        ++it) {
     if (it->request && (account_id == it->account_id)) {
       it->request->InformConsumer(auth_error, std::string(), base::Time());
     }
   }
 }
 
-OAuth2AccessTokenFetcher* FakeOAuth2TokenService::CreateAccessTokenFetcher(
-    const std::string& account_id,
-    net::URLRequestContextGetter* getter,
-    OAuth2AccessTokenConsumer* consumer) {
-  // |FakeOAuth2TokenService| overrides |FetchOAuth2Token| and thus
-  // |CreateAccessTokenFetcher| should never be called.
-  NOTREACHED();
-  return NULL;
+FakeOAuth2TokenServiceDelegate*
+FakeOAuth2TokenService::GetFakeOAuth2TokenServiceDelegate() {
+  return static_cast<FakeOAuth2TokenServiceDelegate*>(GetDelegate());
 }