Introduce ServiceWorker.EventDispatchingDelay UMA

content/common/service_worker/service_worker_messages.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.
 
 // Message definition file, included multiple times, hence no include guard.
 
 #include <stdint.h>
 
 #include <string>
 #include <vector>
 
 #include "base/strings/string16.h"
+#include "base/time/time.h"
 #include "content/common/service_worker/service_worker_client_info.h"
 #include "content/common/service_worker/service_worker_status_code.h"
 #include "content/common/service_worker/service_worker_types.h"
 #include "content/public/common/platform_notification_data.h"
 #include "content/public/common/push_event_payload.h"
 #include "ipc/ipc_message_macros.h"
 #include "ipc/ipc_param_traits.h"
 #include "third_party/WebKit/public/platform/modules/serviceworker/WebServiceWorkerError.h"
 #include "third_party/WebKit/public/platform/modules/serviceworker/WebServiceWorkerEventResult.h"
 #include "url/gurl.h"
@@ skipping 225 matching lines @@
 // |provider_id| identifies the ServiceWorkerProviderHost hosting the service
 // worker. |version_id| identifies the ServiceWorkerVersion and
 // |embedded_worker_id| identifies the EmbeddedWorkerInstance.
 IPC_MESSAGE_CONTROL3(ServiceWorkerHostMsg_SetVersionId,
                      int /* provider_id */,
                      int64_t /* version_id */,
                      int /* embedded_worker_id */)
 
 // Informs the browser that event handling has finished.
 // Routed to the target ServiceWorkerVersion.
-IPC_MESSAGE_ROUTED3(ServiceWorkerHostMsg_InstallEventFinished,
+IPC_MESSAGE_ROUTED4(ServiceWorkerHostMsg_InstallEventFinished,
                     int /* request_id */,
                     blink::WebServiceWorkerEventResult,
-                    bool /* has_fetch_event_handler */)
+                    bool /* has_fetch_event_handler */,
+                    base::Time /* dispatch_event_time */)
 
-IPC_MESSAGE_ROUTED2(ServiceWorkerHostMsg_ActivateEventFinished,
+IPC_MESSAGE_ROUTED3(ServiceWorkerHostMsg_ActivateEventFinished,
                     int /* request_id */,
-                    blink::WebServiceWorkerEventResult)
-IPC_MESSAGE_ROUTED2(ServiceWorkerHostMsg_ExtendableMessageEventFinished,
+                    blink::WebServiceWorkerEventResult,
+                    base::Time /* dispatch_event_time */)
+IPC_MESSAGE_ROUTED3(ServiceWorkerHostMsg_ExtendableMessageEventFinished,
                     int /* request_id */,
-                    blink::WebServiceWorkerEventResult)
-IPC_MESSAGE_ROUTED3(ServiceWorkerHostMsg_FetchEventResponse,
+                    blink::WebServiceWorkerEventResult,
+                    base::Time /* dispatch_event_time */)
+IPC_MESSAGE_ROUTED4(ServiceWorkerHostMsg_FetchEventResponse,
                     int /* response_id */,
                     content::ServiceWorkerFetchEventResult,
-                    content::ServiceWorkerResponse)
-IPC_MESSAGE_ROUTED2(ServiceWorkerHostMsg_FetchEventFinished,
+                    content::ServiceWorkerResponse,
+                    base::Time /* dispatch_event_time */)
+IPC_MESSAGE_ROUTED3(ServiceWorkerHostMsg_FetchEventFinished,
                     int /* event_finish_id */,
-                    blink::WebServiceWorkerEventResult)
-IPC_MESSAGE_ROUTED2(ServiceWorkerHostMsg_NotificationClickEventFinished,
+                    blink::WebServiceWorkerEventResult,
+                    base::Time /* dispatch_event_time */)
+IPC_MESSAGE_ROUTED3(ServiceWorkerHostMsg_NotificationClickEventFinished,
                     int /* request_id */,
-                    blink::WebServiceWorkerEventResult)
-IPC_MESSAGE_ROUTED2(ServiceWorkerHostMsg_NotificationCloseEventFinished,
+                    blink::WebServiceWorkerEventResult,
+                    base::Time /* dispatch_event_time */)
+IPC_MESSAGE_ROUTED3(ServiceWorkerHostMsg_NotificationCloseEventFinished,
                     int /* request_id */,
-                    blink::WebServiceWorkerEventResult)
-IPC_MESSAGE_ROUTED2(ServiceWorkerHostMsg_PushEventFinished,
+                    blink::WebServiceWorkerEventResult,
+                    base::Time /* dispatch_event_time */)
+IPC_MESSAGE_ROUTED3(ServiceWorkerHostMsg_PushEventFinished,
                     int /* request_id */,
-                    blink::WebServiceWorkerEventResult)
+                    blink::WebServiceWorkerEventResult,
+                    base::Time /* dispatch_event_time */)
 
 // Responds to a Ping from the browser.
 // Routed to the target ServiceWorkerVersion.
 IPC_MESSAGE_ROUTED0(ServiceWorkerHostMsg_Pong)
 
 // Asks the browser to retrieve client of the sender ServiceWorker.
 IPC_MESSAGE_ROUTED2(ServiceWorkerHostMsg_GetClient,
                     int /* request_id */,
                     std::string /* client_uuid */)
 
@@ skipping 243 matching lines @@
 
 // Sent via EmbeddedWorker as a response of NavigateClient.
 IPC_MESSAGE_CONTROL2(ServiceWorkerMsg_NavigateClientResponse,
                      int /* request_id */,
                      content::ServiceWorkerClientInfo /* client */)
 
 // Sent via EmbeddedWorker as an error response of NavigateClient.
 IPC_MESSAGE_CONTROL2(ServiceWorkerMsg_NavigateClientError,
                      int /* request_id */,
                      GURL /* url */)