media/blink/active_loader.h

   1 // Copyright 2013 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 MEDIA_BLINK_ACTIVE_LOADER_H_
   6 #define MEDIA_BLINK_ACTIVE_LOADER_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "media/base/media_export.h"
  11
  12 namespace blink {
  13 class WebURLLoader;
  14 }
  15
  16 namespace media {
  17
  18 // Wraps an active WebURLLoader with some additional state.
  19 //
  20 // Handles deferring and deletion of loaders.
  21 class MEDIA_EXPORT ActiveLoader {
  22  public:
  23   // Creates an ActiveLoader with the given loader. It is assumed that the
  24   // initial state of |loader| is loading and not deferred.
  25   explicit ActiveLoader(scoped_ptr<blink::WebURLLoader> loader);
  26   ~ActiveLoader();
  27
  28   // Starts or stops deferring the resource load.
  29   void SetDeferred(bool deferred);
  30   bool deferred() { return deferred_; }
  31
  32  private:
  33   friend class BufferedDataSourceTest;
  34
  35   scoped_ptr<blink::WebURLLoader> loader_;
  36   bool deferred_;
  37
  38   DISALLOW_IMPLICIT_CONSTRUCTORS(ActiveLoader);
  39 };
  40
  41 }  // namespace media
  42
  43 #endif  // MEDIA_BLINK_ACTIVE_LOADER_H_