ServiceWorker: Implement navigate() method in WindowClient (chromium side).

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 <string>
 #include <vector>
 
 #include "base/strings/string16.h"
@@ skipping 241 matching lines @@
 // Ask the browser to open a tab/window (renderer->browser).
 IPC_MESSAGE_ROUTED2(ServiceWorkerHostMsg_OpenWindow,
                     int /* request_id */,
                     GURL /* url */)
 
 // Ask the browser to focus a client (renderer->browser).
 IPC_MESSAGE_ROUTED2(ServiceWorkerHostMsg_FocusClient,
                     int /* request_id */,
                     std::string /* uuid */)
 
+// Ask the browser to navigate a client (renderer->browser).
+IPC_MESSAGE_ROUTED3(ServiceWorkerHostMsg_NavigateClient,
+                    int /* request_id */,
+                    std::string /* uuid */,
+                    GURL /* url */)
+
 // Asks the browser to force this worker to become activated.
 IPC_MESSAGE_ROUTED1(ServiceWorkerHostMsg_SkipWaiting,
                     int /* request_id */)
 
 // Asks the browser to have this worker take control of pages that match
 // its scope.
 IPC_MESSAGE_ROUTED1(ServiceWorkerHostMsg_ClaimClients,
                     int /* request_id */)
 
 // Asks the browser to stash a message port, giving it a name.
@@ skipping 192 matching lines @@
 // Sent via EmbeddedWorker as an error response of OpenWindow.
 IPC_MESSAGE_CONTROL2(ServiceWorkerMsg_OpenWindowError,
                      int /* request_id */,
                      std::string /* message */ )
 
 // Sent via EmbeddedWorker as a response of FocusClient.
 IPC_MESSAGE_CONTROL2(ServiceWorkerMsg_FocusClientResponse,
                      int /* request_id */,
                      content::ServiceWorkerClientInfo /* client */)
 
+// Sent via EmbeddedWorker as a response of NavigateClient.
+IPC_MESSAGE_CONTROL2(ServiceWorkerMsg_NavigateClientResponse,
+                     int /* request_id */,
+                     content::ServiceWorkerClientInfo /* client */)
+
 // Sent via EmbeddedWorker to transfer a stashed message port to the worker.
 IPC_MESSAGE_CONTROL3(
     ServiceWorkerMsg_SendStashedMessagePorts,
     std::vector<content::TransferredMessagePort> /* stashed_message_ports */,
     std::vector<int> /* new_routing_ids */,
     std::vector<base::string16> /* port_names */)