[iOS] Upstream //ios/chrome/browser/signin/signin_util

ios/chrome/browser/signin/signin_util.h

Index: ios/chrome/browser/signin/signin_util.h
diff --git a/ios/chrome/browser/signin/signin_util.h b/ios/chrome/browser/signin/signin_util.h
new file mode 100644
index 0000000000000000000000000000000000000000..d743688220e34167916371c15dae490edd826329
--- /dev/null
+++ b/ios/chrome/browser/signin/signin_util.h
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+// 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.
+
+#ifndef IOS_CHROME_BROWSER_SIGNIN_SIGNIN_UTIL_H_
+#define IOS_CHROME_BROWSER_SIGNIN_SIGNIN_UTIL_H_
+
+#include <Foundation/Foundation.h>
+
+#include <set>
+#include <string>
+
+@class ChromeIdentity;
+
+// Returns an NSArray of |scopes| as NSStrings.
+NSArray* GetScopeArray(const std::set<std::string>& scopes);
+
+// Returns the canonicalized and sanitized user email for the given identity.
+// Returns nil if the identity does not have any user email.
+std::string GetCanonicalizedEmailForIdentity(ChromeIdentity* identity);
+
+// Returns whether the given signin |error| should be handled.
+//
+// Note that cancel errors and errors handled internally by the signin component
+// should not be handled.
+bool ShouldHandleSigninError(NSError* error);
+
+#endif  // IOS_CHROME_BROWSER_SIGNIN_SIGNIN_UTIL_H_