Change SigninManagerBase convenience method.

The new GetAuthenticatedAccountInfo() returns an AccountInfo instead of
just the email.
Old code has been updated to use GetAuthenticatedAccountInfo().email.

BUG=
[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected]

Review URL: https://codereview.chromium.org/1306843005

Cr-Commit-Position: refs/heads/master@{#346374}
diff --git a/chrome/browser/sync/profile_sync_service_android.cc b/chrome/browser/sync/profile_sync_service_android.cc
index 1be276e4..973d5af 100644
--- a/chrome/browser/sync/profile_sync_service_android.cc
+++ b/chrome/browser/sync/profile_sync_service_android.cc
@@ -309,7 +309,9 @@
         JNIEnv* env, jobject) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   const std::string& sync_username =
-      SigninManagerFactory::GetForProfile(profile_)->GetAuthenticatedUsername();
+      SigninManagerFactory::GetForProfile(profile_)
+          ->GetAuthenticatedAccountInfo()
+          .email;
   return base::android::ConvertUTF16ToJavaString(env,
       l10n_util::GetStringFUTF16(
           IDS_SYNC_ACCOUNT_SYNCING_TO_USER,