Introduce "navigate" mode in Requests

content/common/service_worker/service_worker_types.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.
 
 #ifndef CONTENT_COMMON_SERVICE_WORKER_SERVICE_WORKER_TYPES_H_
 #define CONTENT_COMMON_SERVICE_WORKER_SERVICE_WORKER_TYPES_H_
 
 #include <map>
 #include <string>
 
@@ skipping 58 matching lines @@
   // For ServiceWorkers.
   SERVICE_WORKER_PROVIDER_FOR_CONTROLLER,
 
   // For sandboxed frames.
   SERVICE_WORKER_PROVIDER_FOR_SANDBOXED_FRAME,
 
   SERVICE_WORKER_PROVIDER_TYPE_LAST =
       SERVICE_WORKER_PROVIDER_FOR_SANDBOXED_FRAME
 };
 
+// The enum entries below are written to histograms and thus cannot be deleted
+// or reordered.
+// New entries must be added immediately before the end.
 enum FetchRequestMode {
   FETCH_REQUEST_MODE_SAME_ORIGIN,
   FETCH_REQUEST_MODE_NO_CORS,
   FETCH_REQUEST_MODE_CORS,
   FETCH_REQUEST_MODE_CORS_WITH_FORCED_PREFLIGHT,
-  FETCH_REQUEST_MODE_LAST = FETCH_REQUEST_MODE_CORS_WITH_FORCED_PREFLIGHT
+  FETCH_REQUEST_MODE_NAVIGATE,
+  FETCH_REQUEST_MODE_LAST = FETCH_REQUEST_MODE_NAVIGATE
 };
 
 enum FetchCredentialsMode {
   FETCH_CREDENTIALS_MODE_OMIT,
   FETCH_CREDENTIALS_MODE_SAME_ORIGIN,
   FETCH_CREDENTIALS_MODE_INCLUDE,
   FETCH_CREDENTIALS_MODE_LAST = FETCH_CREDENTIALS_MODE_INCLUDE
 };
 
 enum class FetchRedirectMode {
@@ skipping 118 matching lines @@
 
 struct ServiceWorkerClientQueryOptions {
   ServiceWorkerClientQueryOptions();
   blink::WebServiceWorkerClientType client_type;
   bool include_uncontrolled;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_SERVICE_WORKER_SERVICE_WORKER_TYPES_H_