Sooper experimental refactoring of the profile info cache.

chrome/browser/ui/sync/one_click_signin_helper.cc

Index: chrome/browser/ui/sync/one_click_signin_helper.cc
diff --git a/chrome/browser/ui/sync/one_click_signin_helper.cc b/chrome/browser/ui/sync/one_click_signin_helper.cc
index 5fc58e462f5d4534127997d383b77963e7c79d43..1d7bb192d0a755bb8831ee2dcc5713b6d7060681 100644
--- a/chrome/browser/ui/sync/one_click_signin_helper.cc
+++ b/chrome/browser/ui/sync/one_click_signin_helper.cc
@@ -739,8 +739,10 @@ bool OneClickSigninHelper::CanOffer(content::WebContents* web_contents,
         string16 email16 = UTF8ToUTF16(email);
         ProfileInfoCache& cache = manager->GetProfileInfoCache();
 
-        for (size_t i = 0; i < cache.GetNumberOfProfiles(); ++i) {
-          if (email16 == cache.GetUserNameOfProfileAtIndex(i)) {
+        const std::vector<ProfileInfoEntry> entries(cache.GetProfilesSortedByName());
+        for (std::vector<ProfileInfoEntry>::const_iterator it = entries.begin();
+          it != entries.end(); ++it) {
+          if (email16 == it->user_name()) {
             if (error_message) {
               error_message->assign(
                   l10n_util::GetStringUTF8(IDS_SYNC_USER_NAME_IN_USE_ERROR));