Remove MutableProfileOAuth2TokenService on iOS.

google_apis/gaia/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 "google_apis/gaia/oauth2_token_service.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 217 matching lines @@
     base::WeakPtr<RequestImpl> waiting_request)
     : oauth2_token_service_(oauth2_token_service),
       getter_(getter),
       account_id_(account_id),
       scopes_(scopes),
       retry_number_(0),
       error_(GoogleServiceAuthError::SERVICE_UNAVAILABLE),
       client_id_(client_id),
       client_secret_(client_secret) {
   DCHECK(oauth2_token_service_);
-  DCHECK(getter_.get());
   waiting_requests_.push_back(waiting_request);
 }
 
 OAuth2TokenService::Fetcher::~Fetcher() {
   // Inform the waiting requests if it has not done so.
   if (waiting_requests_.size())
     InformWaitingRequests();
 }
 
 void OAuth2TokenService::Fetcher::Start() {
@@ skipping 549 matching lines @@
     const std::string& account_id,
     const ScopeSet& scopes) const {
   PendingFetcherMap::const_iterator iter = pending_fetchers_.find(
       OAuth2TokenService::RequestParameters(
           client_id,
           account_id,
           scopes));
   return iter == pending_fetchers_.end() ?
              0 : iter->second->GetWaitingRequestCount();
 }