Implement native web notifications for mac

base/mac/sdk_forward_declarations.h

Index: base/mac/sdk_forward_declarations.h
diff --git a/base/mac/sdk_forward_declarations.h b/base/mac/sdk_forward_declarations.h
index 44e0b8f4a6c94e254df228c8ace130d1f46413cf..b5cf4f15042e40dc7b962af264c51c787daa7060 100644
--- a/base/mac/sdk_forward_declarations.h
+++ b/base/mac/sdk_forward_declarations.h
@@ -52,9 +52,17 @@
 @interface NSUUID : NSObject
 @end
 
+@interface NSUserNotification : NSObject

[Robert Sesek, 2015/12/09 16:42:24]

Do you actually need these? We now build with the 10.10 SDK (required) so this
condition should probably never be triggered.

[Miguel Garcia, 2015/12/10 20:16:30]

I think I just need the @class definitions below which I can move to the
ui_manager instead.

+@end
+
+@interface NSUserNotificationCenter : NSObject
+@end
+
 #else
 
 @class NSUUID;
+@class NSUserNotification;
+@class NSUserNotificationCenter;
 
 #endif  // MAC_OS_X_VERSION_10_8