Revert r95841 due to failing media_unittests on linux_shared bot.

media/base/pipeline_impl.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.
 
 // Implementation of Pipeline & PipelineStatusNotification (an async-to-sync
 // callback adapter).
 
 #ifndef MEDIA_BASE_PIPELINE_IMPL_H_
 #define MEDIA_BASE_PIPELINE_IMPL_H_
 
@@ skipping 15 matching lines @@
 #include "media/base/pipeline.h"
 
 namespace media {
 
 // Adapter for using asynchronous Pipeline methods in code that wants to run
 // synchronously.  To use, construct an instance of this class and pass the
 // |Callback()| to the Pipeline method requiring a callback.  Then Wait() for
 // the callback to get fired and call status() to see what the callback's
 // argument was.  This object is for one-time use; call |Callback()| exactly
 // once.
-class MEDIA_EXPORT PipelineStatusNotification {
+class PipelineStatusNotification {
  public:
   PipelineStatusNotification();
   ~PipelineStatusNotification();
 
   // See class-level comment for usage.
   media::PipelineStatusCallback* Callback();
   void Notify(media::PipelineStatus status);
   void Wait();
   media::PipelineStatus status();
 
@@ skipping 37 matching lines @@
 // Initialization is a series of state transitions from "Created" through each
 // filter initialization state.  When all filter initialization states have
 // completed, we are implicitly in a "Paused" state.  At that point we simulate
 // a Seek() to the beginning of the media to give filters a chance to preroll.
 // From then on the normal Seek() transitions are carried out and we start
 // playing the media.
 //
 // If any error ever happens, this object will transition to the "Error" state
 // from any state. If Stop() is ever called, this object will transition to
 // "Stopped" state.
-class MEDIA_EXPORT PipelineImpl : public Pipeline, public FilterHost {
+class PipelineImpl : public Pipeline, public FilterHost {
  public:
   explicit PipelineImpl(MessageLoop* message_loop);
 
   // Pipeline implementation.
   virtual void Init(PipelineStatusCallback* ended_callback,
                     PipelineStatusCallback* error_callback,
                     PipelineStatusCallback* network_callback);
   virtual bool Start(FilterCollection* filter_collection,
                      const std::string& uri,
                      PipelineStatusCallback* start_callback);
@@ skipping 350 matching lines @@
   PipelineStatistics statistics_;
 
   FRIEND_TEST_ALL_PREFIXES(PipelineImplTest, GetBufferedTime);
 
   DISALLOW_COPY_AND_ASSIGN(PipelineImpl);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_PIPELINE_IMPL_H_