Move WebMediaPlayerImpl and its dependencies to media/blink.

media/blink/active_loader.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_ACTIVE_LOADER_H_
-#define CONTENT_RENDERER_MEDIA_ACTIVE_LOADER_H_
+#ifndef MEDIA_BLINK_ACTIVE_LOADER_H_
+#define MEDIA_BLINK_ACTIVE_LOADER_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
+#include "media/base/media_export.h"
 
 namespace blink {
 class WebURLLoader;
 }
 
-namespace content {
+namespace media {
 
 // Wraps an active WebURLLoader with some additional state.
 //
 // Handles deferring and deletion of loaders.
-class ActiveLoader {
+class MEDIA_EXPORT ActiveLoader {
  public:
   // Creates an ActiveLoader with the given loader. It is assumed that the
   // initial state of |loader| is loading and not deferred.
   explicit ActiveLoader(scoped_ptr<blink::WebURLLoader> loader);
   ~ActiveLoader();
 
   // Starts or stops deferring the resource load.
   void SetDeferred(bool deferred);
   bool deferred() { return deferred_; }
 
  private:
   friend class BufferedDataSourceTest;
 
   scoped_ptr<blink::WebURLLoader> loader_;
   bool deferred_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(ActiveLoader);
 };
 
-}  // namespace content
+}  // namespace media
 
-#endif  // CONTENT_RENDERER_MEDIA_ACTIVE_LOADER_H_
+#endif  // MEDIA_BLINK_ACTIVE_LOADER_H_