Add an XPC service to handle alert notifications on mac

chrome/browser/ui/cocoa/notifications/alert_notification_service.mm

Index: chrome/browser/ui/cocoa/notifications/alert_notification_service.mm
diff --git a/chrome/browser/ui/cocoa/notifications/alert_notification_service.mm b/chrome/browser/ui/cocoa/notifications/alert_notification_service.mm
new file mode 100644
index 0000000000000000000000000000000000000000..9db768a196223e38addbe50369b0093a12d6f14e
--- /dev/null
+++ b/chrome/browser/ui/cocoa/notifications/alert_notification_service.mm
@@ -0,0 +1,25 @@
+// 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.
+
+#import "chrome/browser/ui/cocoa/notifications/alert_notification_service.h"
+
+#include "base/mac/scoped_nsobject.h"

[Robert Sesek, 2016/09/29 14:23:05]

#import for both of these, since they're ObjC

[Miguel Garcia, 2016/10/03 16:07:50]

Done.

+#include "chrome/browser/ui/cocoa/notifications/notification_builder_mac.h"
+
+@class NSUserNotification;

[Robert Sesek, 2016/09/29 14:23:05]

Don't need these forward declarations since you import Foundation in the header.

[Miguel Garcia, 2016/10/03 16:07:51]

I removed NSUserNotification but for NSUserNotificationCenter it still barfs
with partially defined errors if I don't forward declare it.

../../chrome/browser/ui/cocoa/notifications/alert_notification_service.mm:21:5:
error: 'NSUserNotificationCenter' is only available on macOS 10_8 or newer
[-Werror,-Wunguarded-availability]
  [[NSUserNotificationCenter defaultUserNotificationCenter]
    ^~~~~~~~~~~~~~~~~~~~~~~~
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSUserNotification.h:116:12:
note: 'NSUserNotificationCenter' has been explicitly marked partial here
@interface NSUserNotificationCenter : NSObject {

+@class NSUserNotificationCenter;
+
+@implementation AlertNotificationService
+
+- (void)deliverNotification:(NSDictionary*)notificationData {
+  base::scoped_nsobject<NotificationBuilder> builder(
+      [[NotificationBuilder alloc] initWithDictionary:notificationData]);
+
+  NSUserNotification* toast = [builder buildUserNotification];
+
+  [[NSUserNotificationCenter defaultUserNotificationCenter]
+      deliverNotification:toast];
+}
+
+@end