Upstream Chrome on iOS source code [3/11].

ios/chrome/browser/ui/alert_coordinator/loading_alert_coordinator.h

Index: ios/chrome/browser/ui/alert_coordinator/loading_alert_coordinator.h
diff --git a/ios/chrome/browser/ui/alert_coordinator/loading_alert_coordinator.h b/ios/chrome/browser/ui/alert_coordinator/loading_alert_coordinator.h
new file mode 100644
index 0000000000000000000000000000000000000000..b46079f32bbdc6727da818e765d0364f1638ba0f
--- /dev/null
+++ b/ios/chrome/browser/ui/alert_coordinator/loading_alert_coordinator.h
@@ -0,0 +1,29 @@
+// Copyright 2016 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_ALERT_COORDINATOR_LOADING_ALERT_COORDINATOR_H_
+#define IOS_CHROME_BROWSER_UI_ALERT_COORDINATOR_LOADING_ALERT_COORDINATOR_H_
+
+#include "base/ios/block_types.h"
+#import "ios/chrome/browser/chrome_coordinator.h"
+
+// Coordinator displaying an activity indicator with a title and a cancel
+// button.
+@interface LoadingAlertCoordinator : ChromeCoordinator
+
+- (instancetype)initWithBaseViewController:(UIViewController*)viewController
+    NS_UNAVAILABLE;
+
+// Initializes the coordinator with the |viewController| which will present the
+// dialog, the |title| of the alert and the |cancelHandler| callback if the
+// cancel button is tapped.
+// |cancelHandler| can be nil.
+- (instancetype)initWithBaseViewController:(UIViewController*)viewController
+                                     title:(NSString*)title
+                             cancelHandler:(ProceduralBlock)cancelHandler
+    NS_DESIGNATED_INITIALIZER;
+
+@end
+
+#endif  // IOS_CHROME_BROWSER_UI_ALERT_COORDINATOR_LOADING_ALERT_COORDINATOR_H_