Implement PushManager#hasPermission

content/common/push_messaging_messages.h

Index: content/common/push_messaging_messages.h
diff --git a/content/common/push_messaging_messages.h b/content/common/push_messaging_messages.h
index 724d1a7e7258c34518c0553982ccf9e745bae598..f6dbdd1b64bafba032389bccc1d0a83ce9895135 100644
--- a/content/common/push_messaging_messages.h
+++ b/content/common/push_messaging_messages.h
@@ -7,6 +7,7 @@
 
 #include "content/public/common/push_messaging_status.h"
 #include "ipc/ipc_message_macros.h"
+#include "third_party/WebKit/public/platform/WebPushPermissionStatus.h"
 #include "url/gurl.h"
 
 #define IPC_MESSAGE_START PushMessagingMsgStart
@@ -14,6 +15,9 @@
 IPC_ENUM_TRAITS_MAX_VALUE(content::PushRegistrationStatus,
                           content::PUSH_REGISTRATION_STATUS_LAST)
 
+IPC_ENUM_TRAITS_MAX_VALUE(
+    blink::WebPushPermissionStatus,
+    blink::WebPushPermissionStatus::WebPushPermissionStatusLast)
 // Messages sent from the browser to the renderer.
 
 IPC_MESSAGE_ROUTED3(PushMessagingMsg_RegisterSuccess,
@@ -25,6 +29,13 @@ IPC_MESSAGE_ROUTED2(PushMessagingMsg_RegisterError,
                     int32 /* callbacks_id */,
                     content::PushRegistrationStatus /* status */)
 
+IPC_MESSAGE_ROUTED2(PushMessagingMsg_PermissionStatusResult,
+                    int32 /* callback_id */,
+                    blink::WebPushPermissionStatus /* status */)
+
+IPC_MESSAGE_ROUTED1(PushMessagingMsg_PermissionStatusFailure,
+                    int32 /* callback_id */)
+
 // Messages sent from the renderer to the browser.
 
 IPC_MESSAGE_CONTROL5(PushMessagingHostMsg_Register,
@@ -33,3 +44,8 @@ IPC_MESSAGE_CONTROL5(PushMessagingHostMsg_Register,
                      std::string /* sender_id */,
                      bool /* user_gesture */,
                      int32 /* service_worker_provider_id */)
+
+IPC_MESSAGE_CONTROL3(PushMessagingHostMsg_PermissionStatus,
+                     int32 /* render_frame_id */,
+                     int32 /* service_worker_provider_id */,
+                     int32 /* permission_callback_id */)