Eliminate network fallback from ServiceWorkerContextRequestHandler.

content/browser/service_worker/service_worker_context_request_handler.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_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CONTEXT_REQUEST_HANDLER_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CONTEXT_REQUEST_HANDLER_H_
 
 #include <stdint.h>
 
 #include "base/macros.h"
 #include "content/browser/service_worker/service_worker_request_handler.h"
 
 namespace content {
 
 class ServiceWorkerVersion;
 
 // A request handler derivative used to handle requests from
 // service workers.
 class CONTENT_EXPORT ServiceWorkerContextRequestHandler
     : public ServiceWorkerRequestHandler {
  public:
   enum class CreateJobStatus {
     UNINITIALIZED,
-    CREATED_WRITE_JOB_FOR_REGISTER,
-    CREATED_WRITE_JOB_FOR_UPDATE,
-    CREATED_READ_JOB,
-    NO_PROVIDER,
-    NO_VERSION,
-    NO_CONTEXT,
-    IGNORE_REDIRECT,
-    IGNORE_NON_SCRIPT,
-    OUT_OF_RESOURCE_IDS,
-    IGNORE_UNKNOWN,
-    // This is just to distinguish from UNINITIALIZED in case the function that
-    // is supposed to set status didn't do so.
-    DID_NOT_SET_STATUS
+    WRITE_JOB_FOR_REGISTER,
+    WRITE_JOB_FOR_UPDATE,
+    READ_JOB,
+    // When a new worker imports a script that was already imported.
+    READ_JOB_FOR_DUPLICATE_SCRIPT_IMPORT,
+    ERROR_NO_PROVIDER,
+    ERROR_NO_VERSION,
+    ERROR_REDUNDANT_VERSION,
+    ERROR_NO_CONTEXT,
+    ERROR_REDIRECT,
+    // When an installed worker imports a script that was not stored at
+    // installation time.
+    ERROR_UNINSTALLED_SCRIPT_IMPORT,
+    ERROR_OUT_OF_RESOURCE_IDS,
+    NUM_TYPES
   };
 
   ServiceWorkerContextRequestHandler(
       base::WeakPtr<ServiceWorkerContextCore> context,
       base::WeakPtr<ServiceWorkerProviderHost> provider_host,
       base::WeakPtr<storage::BlobStorageContext> blob_storage_context,
       ResourceType resource_type);
   ~ServiceWorkerContextRequestHandler() override;
 
   // Called via custom URLRequestJobFactory.
   net::URLRequestJob* MaybeCreateJob(
       net::URLRequest* request,
       net::NetworkDelegate* network_delegate,
       ResourceContext* resource_context) override;
 
+  static std::string CreateJobStatusToString(CreateJobStatus status);
+
  private:
-  net::URLRequestJob* MaybeCreateJobImpl(CreateJobStatus* out_status,
-                                         net::URLRequest* request,
+  net::URLRequestJob* MaybeCreateJobImpl(net::URLRequest* request,
                                          net::NetworkDelegate* network_delegate,
-                                         ResourceContext* resource_context);
-  bool ShouldAddToScriptCache(const GURL& url);
-  bool ShouldReadFromScriptCache(const GURL& url, int64_t* resource_id_out);
+                                         CreateJobStatus* out_status);
 
   scoped_refptr<ServiceWorkerVersion> version_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerContextRequestHandler);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CONTEXT_REQUEST_HANDLER_H_