Eliminate usage of PO2TS::GetPrimaryAccountID() in UbertokenFetcher.

chrome/browser/signin/ubertoken_fetcher.cc

Index: chrome/browser/signin/ubertoken_fetcher.cc
diff --git a/chrome/browser/signin/ubertoken_fetcher.cc b/chrome/browser/signin/ubertoken_fetcher.cc
index 9cd832724c22cd26648cb6eb87166dc904e1b676..ef195915c58267be52d6bc338710891be2d7fe6d 100644
--- a/chrome/browser/signin/ubertoken_fetcher.cc
+++ b/chrome/browser/signin/ubertoken_fetcher.cc
@@ -14,6 +14,7 @@
 #include "google_apis/gaia/gaia_constants.h"
 #include "google_apis/gaia/gaia_urls.h"
 #include "google_apis/gaia/google_service_auth_error.h"
+#include "google_apis/gaia/oauth2_token_service.h"
 
 UbertokenFetcher::UbertokenFetcher(Profile* profile,
                                    UbertokenConsumer* consumer)
@@ -26,16 +27,10 @@ UbertokenFetcher::UbertokenFetcher(Profile* profile,
 UbertokenFetcher::~UbertokenFetcher() {
 }
 
-void UbertokenFetcher::StartFetchingToken() {
-  ProfileOAuth2TokenService* token_service =
-      ProfileOAuth2TokenServiceFactory::GetForProfile(profile_);
-  StartFetchingToken(token_service->GetPrimaryAccountId());
-}
-
 void UbertokenFetcher::StartFetchingToken(const std::string& account_id) {
   OAuth2TokenService::ScopeSet scopes;
   scopes.insert(GaiaUrls::GetInstance()->oauth1_login_scope());
-  ProfileOAuth2TokenService* token_service =
+  OAuth2TokenService* token_service =
       ProfileOAuth2TokenServiceFactory::GetForProfile(profile_);
   access_token_request_ = token_service->StartRequest(account_id, scopes, this);
 }