Revert r95841 due to failing media_unittests on linux_shared bot.

media/base/pipeline.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.
 
 // The pipeline is the public API clients use for playing back media.  Clients
 // provide a filter collection containing the filters they want the pipeline to
 // use to render media.
 
 #ifndef MEDIA_BASE_PIPELINE_H_
 #define MEDIA_BASE_PIPELINE_H_
 
 #include <string>
 
 #include "base/callback.h"
 #include "media/base/filters.h"
 #include "media/base/pipeline_status.h"
 
 namespace base {
 class TimeDelta;
 }
 
 namespace media {
 
-MEDIA_EXPORT extern const char kRawMediaScheme[];
+extern const char kRawMediaScheme[];
 
 struct PipelineStatistics {
   PipelineStatistics() :
       audio_bytes_decoded(0),
       video_bytes_decoded(0),
       video_frames_decoded(0),
       video_frames_dropped(0) {
   }
 
   uint32 audio_bytes_decoded;  // Should be uint64?
   uint32 video_bytes_decoded;  // Should be uint64?
   uint32 video_frames_decoded;
   uint32 video_frames_dropped;
 };
 
 class FilterCollection;
 
-class MEDIA_EXPORT Pipeline : public base::RefCountedThreadSafe<Pipeline> {
+class Pipeline : public base::RefCountedThreadSafe<Pipeline> {
  public:
   // Initializes pipeline. Pipeline takes ownership of all callbacks passed
   // into this method.
   // |ended_callback| will be executed when the media reaches the end.
   // |error_callback_| will be executed upon an error in the pipeline.
   // |network_callback_| will be executed when there's a network event.
   virtual void Init(PipelineStatusCallback* ended_callback,
                     PipelineStatusCallback* error_callback,
                     PipelineStatusCallback* network_callback) = 0;
 
@@ skipping 114 matching lines @@
 
  protected:
   // Only allow ourselves to be deleted by reference counting.
   friend class base::RefCountedThreadSafe<Pipeline>;
   virtual ~Pipeline() {}
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_PIPELINE_H_