service worker: Implement NavigationPreloadManager.getState

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>
@@ skipping 177 matching lines @@
                      int /* provider_id */)
 
 // Asks the browser to enable/disable navigation preload for a registration.
 IPC_MESSAGE_CONTROL5(ServiceWorkerHostMsg_EnableNavigationPreload,
                      int /* thread_id */,
                      int /* request_id */,
                      int /* provider_id */,
                      int64_t /* registration_id */,
                      bool /* enable */)
 
+// Asks the browser to get navigation preload state for a registration.
+IPC_MESSAGE_CONTROL4(ServiceWorkerHostMsg_GetNavigationPreloadState,
+                     int /* thread_id */,
+                     int /* request_id */,
+                     int /* provider_id */,
+                     int64_t /* registration_id */)
+
 // Sends ExtendableMessageEvent to a service worker (renderer->browser).
 IPC_MESSAGE_CONTROL5(
     ServiceWorkerHostMsg_PostMessageToWorker,
     int /* handle_id */,
     int /* provider_id */,
     base::string16 /* message */,
     url::Origin /* source_origin */,
     std::vector<int> /* sent_message_ports */)
 
 // Informs the browser of a new ServiceWorkerProvider in the child process,
@@ skipping 276 matching lines @@
                      bool /* should_notify_controllerchange */)
 
 IPC_MESSAGE_CONTROL2(ServiceWorkerMsg_DidEnableNavigationPreload,
                      int /* thread_id */,
                      int /* request_id */)
 IPC_MESSAGE_CONTROL4(ServiceWorkerMsg_EnableNavigationPreloadError,
                      int /* thread_id */,
                      int /* request_id */,
                      blink::WebServiceWorkerError::ErrorType /* code */,
                      std::string /* message */)
+IPC_MESSAGE_CONTROL3(ServiceWorkerMsg_DidGetNavigationPreloadState,
+                     int /* thread_id */,
+                     int /* request_id */,
+                     bool /* enabled */)
+IPC_MESSAGE_CONTROL4(ServiceWorkerMsg_GetNavigationPreloadStateError,
+                     int /* thread_id */,
+                     int /* request_id */,
+                     blink::WebServiceWorkerError::ErrorType /* code */,
+                     std::string /* message */)
 
 // Sends MessageEvent to a client document (browser->renderer).
 IPC_MESSAGE_CONTROL1(ServiceWorkerMsg_MessageToDocument,
                      ServiceWorkerMsg_MessageToDocument_Params)
 
 // Sent via EmbeddedWorker to dispatch events.
 IPC_MESSAGE_CONTROL1(ServiceWorkerMsg_InstallEvent,
                      int /* request_id */)
 IPC_MESSAGE_CONTROL1(ServiceWorkerMsg_ActivateEvent,
                      int /* request_id */)
@@ skipping 53 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 */)