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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_METRICS_H_
      6 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_METRICS_H_
      7 
      8 #include "base/macros.h"
      9 #include "content/browser/service_worker/service_worker_database.h"
     10 
     11 namespace content {
     12 
     13 class ServiceWorkerMetrics {
     14  public:
     15   enum ReadResponseResult {
     16     READ_OK,
     17     READ_HEADERS_ERROR,
     18     READ_DATA_ERROR,
     19     NUM_READ_RESPONSE_RESULT_TYPES,
     20   };
     21 
     22   enum WriteResponseResult {
     23     WRITE_OK,
     24     WRITE_HEADERS_ERROR,
     25     WRITE_DATA_ERROR,
     26     NUM_WRITE_RESPONSE_RESULT_TYPES,
     27   };
     28 
     29   // Used for ServiceWorkerDiskCache.
     30   static void CountInitDiskCacheResult(bool result);
     31   static void CountReadResponseResult(ReadResponseResult result);
     32   static void CountWriteResponseResult(WriteResponseResult result);
     33 
     34   // Used for ServiceWorkerDatabase.
     35   static void CountOpenDatabaseResult(ServiceWorkerDatabase::Status status);
     36   static void CountReadDatabaseResult(ServiceWorkerDatabase::Status status);
     37   static void CountWriteDatabaseResult(ServiceWorkerDatabase::Status status);
     38 
     39   // Counts the number of page loads controlled by a Service Worker.
     40   static void CountControlledPageLoad();
     41 
     42  private:
     43   DISALLOW_IMPLICIT_CONSTRUCTORS(ServiceWorkerMetrics);
     44 };
     45 
     46 }  // namespace content
     47 
     48 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_METRICS_H_
     49