Plumb requireInteraction to PlatformNotificationData & database

content/public/common/platform_notification_data.h

 // Copyright 2014 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 CONTENT_PUBLIC_COMMON_PLATFORM_NOTIFICATION_DATA_H_
 #define CONTENT_PUBLIC_COMMON_PLATFORM_NOTIFICATION_DATA_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 54 matching lines @@
   GURL icon;
 
   // Vibration pattern for the notification, following the syntax of the
   // Vibration API. https://www.w3.org/TR/vibration/
   std::vector<int> vibration_pattern;
 
   // Whether default notification indicators (sound, vibration, light) should
   // be suppressed.
   bool silent = false;
 
+  // Whether the notification should remain onscreen indefinitely, rather than

[Peter Beverloo, 2015/08/27 14:20:46]

I'd prefer this description to be a little bit higher level. Implementation of
the require_interaction flag is left up to the platform notification center
(i.e. message_center and Android).

+  // being auto-minimized to the notification center (if allowed by platform).
+  bool require_interaction = false;
+
   // Developer-provided data associated with the notification, in the form of
   // a serialized string. Must not exceed |kMaximumDeveloperDataSize| bytes.
   std::vector<char> data;
 
   // Actions that should be shown as buttons on the notification.
   std::vector<PlatformNotificationAction> actions;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_COMMON_PLATFORM_NOTIFICATION_DATA_H_