Revert of Partially convert geolocation IPC to Mojo.

content/common/geolocation_messages.h

 // Copyright (c) 2012 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.
 
 // IPC messages for geolocation.
 // Multiply-included message file, hence no include guard.
 
 #include "content/public/common/geoposition.h"
 #include "ipc/ipc_message_macros.h"
 #include "url/gurl.h"
@@ skipping 16 matching lines @@
   IPC_STRUCT_TRAITS_MEMBER(error_message)
 IPC_STRUCT_TRAITS_END()
 
 // Messages sent from the browser to the renderer.
 
 // Reply in response to GeolocationHostMsg_RequestPermission.
 IPC_MESSAGE_ROUTED2(GeolocationMsg_PermissionSet,
                     int /* bridge_id */,
                     bool /* is_allowed */)
 
+// Sent after GeolocationHostMsg_StartUpdating iff the user has granted
+// permission and we have a position available or an error occurs (such as
+// permission denied, position unavailable, etc.)
+IPC_MESSAGE_ROUTED1(GeolocationMsg_PositionUpdated,
+                    content::Geoposition /* geoposition */)
+
 // Messages sent from the renderer to the browser.
 
 // The |bridge_id| representing |host| is requesting permission to access
 // geolocation position. This will be replied by GeolocationMsg_PermissionSet.
 // TODO(mlamouri): |origin| should be a security origin to guarantee that a
 // proper origin is passed.
 IPC_MESSAGE_ROUTED3(GeolocationHostMsg_RequestPermission,
                      int /* bridge_id */,
                      GURL /* origin in the frame requesting geolocation */,
                      bool /* user_gesture */)
+
+// The render view requests the Geolocation service to start updating.
+// This is an asynchronous call, and the browser process may eventually reply
+// with the updated geoposition, or an error (access denied, location
+// unavailable, etc.)
+IPC_MESSAGE_ROUTED2(GeolocationHostMsg_StartUpdating,
+                     GURL /* origin in the frame requesting geolocation */,
+                     bool /* enable_high_accuracy */)
+
+// The  render view requests Geolocation service to stop updating.
+// Note that the geolocation service may continue to fetch geolocation data
+// for other origins.
+IPC_MESSAGE_ROUTED0(GeolocationHostMsg_StopUpdating)