Upstream Chrome on iOS source code [8/11].

ios/chrome/browser/ui/sync/sync_util.h

+// Copyright 2012 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_UI_SYNC_SYNC_UTIL_H_
+#define IOS_CHROME_BROWSER_UI_SYNC_SYNC_UTIL_H_
+
+#include <Foundation/Foundation.h>
+
+#include "google_apis/gaia/google_service_auth_error.h"
+#include "ios/chrome/browser/sync/sync_setup_service.h"
+
+@class GenericChromeCommand;
+@class Tab;
+
+namespace ios {
+class ChromeBrowserState;
+}
+
+namespace ios_internal {
+namespace sync {
+
+// Gets the top-level description message associated with the sync error state
+// of |browserState|. Returns nil if there is no sync error.
+NSString* GetSyncErrorDescriptionForBrowserState(
+    ios::ChromeBrowserState* browserState);
+
+// Gets the string message associated with the sync error state of
+// |browserState|. The returned error message does not contain any links.
+// Returns nil if there is no sync error.
+NSString* GetSyncErrorMessageForBrowserState(
+    ios::ChromeBrowserState* browserState);
+
+// Gets the title of the button to fix the sync error of |browserState|.
+// Returns nil if there is no sync error or it can't be fixed by a user action.
+NSString* GetSyncErrorButtonTitleForBrowserState(
+    ios::ChromeBrowserState* browserState);
+
+// Gets the command associated with the sync state of |browserState|.
+GenericChromeCommand* GetSyncCommandForBrowserState(
+    ios::ChromeBrowserState* browserState);
+
+// Check for sync errors, and display any that ought to be shown to the user.
+// Returns true if an infobar was brought up.
+bool displaySyncErrors(ios::ChromeBrowserState* browser_state, Tab* tab);
+
+// Returns true if |errorState| corresponds to a transient sync error.
+bool IsTransientSyncError(SyncSetupService::SyncServiceState errorState);
+
+}  // namespace sync
+}  // namespace ios_internal
+
+#endif  // IOS_CHROME_BROWSER_UI_SYNC_SYNC_UTIL_H_