Implement getting notifications up to the browser process.

content/common/platform_notification_messages.h

Index: content/common/platform_notification_messages.h
diff --git a/content/common/platform_notification_messages.h b/content/common/platform_notification_messages.h
index 59801e197397071cf0c687f6e9e805ba9d0bc780..d441e25a7327cd7312c1a59b55096f6be7546c66 100644
--- a/content/common/platform_notification_messages.h
+++ b/content/common/platform_notification_messages.h
@@ -5,6 +5,11 @@
 // Messages for platform-native notifications using the Web Notification API.
 // Multiply-included message file, hence no include guard.
 
+#include <stdint.h>
+#include <string>
+#include <utility>
+#include <vector>
+
 #include "content/public/common/platform_notification_data.h"
 #include "ipc/ipc_message_macros.h"
 #include "third_party/WebKit/public/platform/modules/notifications/WebNotificationPermission.h"
@@ -29,6 +34,11 @@ IPC_STRUCT_TRAITS_BEGIN(content::PlatformNotificationData)
   IPC_STRUCT_TRAITS_MEMBER(silent)
 IPC_STRUCT_TRAITS_END()
 
+// Defines the pair of [persistent notification id] => [notification data] used
+// when getting the notifications for a given Service Worker registration.
+using PersistentNotificationInfo =

[Tom Sepez, 2015/03/17 21:32:38]

This will have to move to an include guarded section of the file to prevent the
compiler seeing it multiple times as code is generated. See something like
https://code.google.com/p/chromium/codesearch#chromium/src/content/common/geo...
for an example of how to structure this section.

[Peter Beverloo, 2015/03/19 15:46:44]

Done.

+    std::pair<std::string, content::PlatformNotificationData>;
+
 // Messages sent from the browser to the renderer.
 
 // Informs the renderer that the browser has displayed the notification.
@@ -43,6 +53,13 @@ IPC_MESSAGE_CONTROL1(PlatformNotificationMsg_DidClose,
 IPC_MESSAGE_CONTROL1(PlatformNotificationMsg_DidClick,
                      int /* notification_id */)
 
+// Informs the renderer about a vector of available notifications in response

[Tom Sepez, 2015/03/17 21:32:38]

nit: this comment might indicate 
"reply to PlatformNotificationHostMsg_GetNotifications" if that's the case.

[Peter Beverloo, 2015/03/19 15:46:44]

Done.

+// to a request to get all persistent notifications for a Service Worker.
+IPC_MESSAGE_CONTROL2(PlatformNotificationMsg_DidGetNotifications,
+                     int /* request_id */,
+                     std::vector<PersistentNotificationInfo>
+                         /* notifications */)
+
 // Messages sent from the renderer to the browser.
 
 IPC_MESSAGE_CONTROL4(PlatformNotificationHostMsg_Show,
@@ -52,11 +69,17 @@ IPC_MESSAGE_CONTROL4(PlatformNotificationHostMsg_Show,
                      content::PlatformNotificationData /* notification_data */)
 
 IPC_MESSAGE_CONTROL4(PlatformNotificationHostMsg_ShowPersistent,
-                     int64 /* service_worker_provider_id */,
+                     int64_t /* service_worker_registration_id */,
                      GURL /* origin */,
                      SkBitmap /* icon */,
                      content::PlatformNotificationData /* notification_data */)
 
+IPC_MESSAGE_CONTROL4(PlatformNotificationHostMsg_GetNotifications,
+                     int /* request_id */,
+                     int64_t /* service_worker_registration_id */,
+                     GURL /* origin */,
+                     std::string /* filter_tag */)
+
 IPC_MESSAGE_CONTROL1(PlatformNotificationHostMsg_Close,
                      int /* notification_id */)