webkit/media/active_loader.h

   1 // Copyright (c) 2012 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 WEBKIT_MEDIA_ACTIVE_LOADER_H_
   6 #define WEBKIT_MEDIA_ACTIVE_LOADER_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/memory/scoped_ptr.h"
  10
  11 namespace WebKit {
  12 class WebURLLoader;
  13 }
  14
  15 namespace webkit_media {
  16
  17 // Wraps an active WebURLLoader with some additional state.
  18 //
  19 // Handles deferring and deletion of loaders.
  20 class ActiveLoader {
  21  public:
  22   // Creates an ActiveLoader with the given loader. It is assumed that the
  23   // initial state of |loader| is loading and not deferred.
  24   explicit ActiveLoader(scoped_ptr<WebKit::WebURLLoader> loader);
  25   ~ActiveLoader();
  26
  27   // Starts or stops deferring the resource load.
  28   void SetDeferred(bool deferred);
  29   bool deferred() { return deferred_; }
  30
  31  private:
  32   friend class BufferedDataSourceTest;
  33
  34   scoped_ptr<WebKit::WebURLLoader> loader_;
  35   bool deferred_;
  36
  37   DISALLOW_IMPLICIT_CONSTRUCTORS(ActiveLoader);
  38 };
  39
  40 }  // namespace webkit_media
  41
  42 #endif  // WEBKIT_MEDIA_ACTIVE_LOADER_H_