Move Preload enum to BufferedDataSource.

content/renderer/media/buffered_data_source.h

 // Copyright 2013 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_RENDERER_MEDIA_BUFFERED_DATA_SOURCE_H_
 #define CONTENT_RENDERER_MEDIA_BUFFERED_DATA_SOURCE_H_
 
 #include <string>
 
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/synchronization/lock.h"
 #include "content/common/content_export.h"
 #include "content/renderer/media/buffered_resource_loader.h"
-#include "content/renderer/media/preload.h"
 #include "media/base/data_source.h"
 #include "media/base/ranges.h"
 #include "url/gurl.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 }
 
 namespace media {
 class MediaLog;
@@ skipping 15 matching lines @@
   virtual ~BufferedDataSourceHost() {};
 };
 
 // A data source capable of loading URLs and buffering the data using an
 // in-memory sliding window.
 //
 // BufferedDataSource must be created and initialized on the render thread
 // before being passed to other threads. It may be deleted on any thread.
 class CONTENT_EXPORT BufferedDataSource : public media::DataSource {
  public:
+  // Used to specify video preload states. They are "hints" to the browser about
+  // how aggressively the browser should load and buffer data.
+  // Please see the HTML5 spec for the descriptions of these values:
+  // http://www.w3.org/TR/html5/video.html#attr-media-preload
+  //
+  // Enum values must match the values in blink::WebMediaPlayer::Preload and
+  // there will be assertions at compile time if they do not match.
+  enum Preload {
+    NONE,
+    METADATA,
+    AUTO,
+  };
   typedef base::Callback<void(bool)> DownloadingCB;
 
   // |url| and |cors_mode| are passed to the object. Buffered byte range changes
   // will be reported to |host|. |downloading_cb| will be called whenever the
   // downloading/paused state of the source changes.
   BufferedDataSource(
       const GURL& url,
       BufferedResourceLoader::CORSMode cors_mode,
       const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
       blink::WebFrame* frame,
@@ skipping 162 matching lines @@
 
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<BufferedDataSource> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BufferedDataSource);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_BUFFERED_DATA_SOURCE_H_