Moving media-related files from webkit/glue/ to webkit/media/.

webkit/glue/media/web_data_source.h

-// Copyright (c) 2011 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 WEBKIT_GLUE_MEDIA_WEB_DATA_SOURCE_H_
-#define WEBKIT_GLUE_MEDIA_WEB_DATA_SOURCE_H_
-
-#include "base/callback.h"
-#include "media/base/filters.h"
-#include "media/base/pipeline_status.h"
-
-namespace webkit_glue {
-
-// An interface that allows WebMediaPlayerImpl::Proxy to communicate with the
-// DataSource in the pipeline.
-class WebDataSource : public media::DataSource {
- public:
-  WebDataSource();
-  virtual ~WebDataSource();
-
-  // Initialize this object using |url|. This object calls |callback| when
-  // initialization has completed.
-  virtual void Initialize(const std::string& url,
-                          const media::PipelineStatusCB& callback) = 0;
-
-  // Called to cancel initialization. The callback passed in Initialize() will
-  // be destroyed and will not be called after this method returns. Once this
-  // method returns, the object will be in an uninitialized state and
-  // Initialize() cannot be called again. The caller is expected to release
-  // its handle to this object and never call it again.
-  virtual void CancelInitialize() = 0;
-
-  // Returns true if the media resource has a single origin, false otherwise.
-  //
-  // Method called on the render thread.
-  virtual bool HasSingleOrigin() = 0;
-
-  // This method is used to unblock any read calls that would cause the
-  // media pipeline to stall.
-  //
-  // Method called on the render thread.
-  virtual void Abort() = 0;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(WebDataSource);
-};
-
-// Temporary hack to allow WebMediaPlayerImpl::Proxy::AddDataSource() to
-// be called when WebDataSource objects are created. This can be removed
-// once WebMediaPlayerImpl::Proxy is fixed so it doesn't have to track
-// WebDataSources. Proxy only has to track WebDataSources so it can call Abort()
-// on them at shutdown. Once cancellation is added to DataSource and pause
-// support in Demuxers cancel pending reads, Proxy shouldn't have to keep
-// a WebDataSource list or call Abort().
-typedef base::Callback<void(WebDataSource*)> WebDataSourceBuildObserverHack;
-
-}  // namespace webkit_glue
-
-#endif  // WEBKIT_GLUE_MEDIA_WEB_DATA_SOURCE_H_