Add ManagedUserTokenFetcher to fetch scoped-down tokens.

chrome/browser/signin/android_profile_oauth2_token_service.cc

 // Copyright 2013 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 "chrome/browser/signin/android_profile_oauth2_token_service.h"
 
 #include "base/bind.h"
 #include "chrome/browser/sync/profile_sync_service_android.h"
 #include "content/public/browser/browser_thread.h"
 #include "net/url_request/url_request_context_getter.h"
@@ skipping 15 matching lines @@
   if (HasCacheEntry(scopes))
     return StartCacheLookupRequest(scopes, consumer);
 
   scoped_ptr<RequestImpl> request(new RequestImpl(consumer));
   DCHECK_EQ(scopes.size(), 1U);
   std::vector<std::string> scope_list(scopes.begin(), scopes.end());
   ProfileSyncServiceAndroid* sync_service =
       ProfileSyncServiceAndroid::GetProfileSyncServiceAndroid();
   sync_service->FetchOAuth2Token(
       scope_list.front(),
-      base::Bind(&OAuth2TokenService::InformConsumer,
+      base::Bind(&RequestImpl::InformConsumer,
                  request->AsWeakPtr()));
   return request.PassAs<Request>();
 }
 
 void AndroidProfileOAuth2TokenService::InvalidateToken(
     const ScopeSet& scopes,
     const std::string& invalid_token) {
   OAuth2TokenService::InvalidateToken(scopes, invalid_token);
 
   DCHECK_EQ(scopes.size(), 1U);
   std::vector<std::string> scope_list(scopes.begin(), scopes.end());
   ProfileSyncServiceAndroid* sync_service =
       ProfileSyncServiceAndroid::GetProfileSyncServiceAndroid();
   sync_service->InvalidateOAuth2Token(
       scope_list.front(),
       invalid_token);
 }
 
 bool AndroidProfileOAuth2TokenService::ShouldCacheForRefreshToken(
     TokenService *token_service,
     const std::string& refresh_token) {
   // The parent class skips caching if the TokenService login token is stale,
   // but on Android the user is always logged in to exactly one profile, so
   // this concept doesn't exist and we can simply always cache.
   return true;
 }