GN Windows component build fixes

media/midi/midi_manager_usb.h

 // Copyright 2014 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 MEDIA_MIDI_MIDI_MANAGER_USB_H_
 #define MEDIA_MIDI_MIDI_MANAGER_USB_H_
 
 #include <utility>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/callback.h"
+#include "base/compiler_specific.h"
 #include "base/containers/hash_tables.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
-#include "media/base/media_export.h"
 #include "media/midi/midi_manager.h"
 #include "media/midi/usb_midi_device.h"
+#include "media/midi/usb_midi_export.h"
 #include "media/midi/usb_midi_input_stream.h"
 #include "media/midi/usb_midi_jack.h"
 #include "media/midi/usb_midi_output_stream.h"
 
 namespace media {
 
 class MidiScheduler;
 
 // MidiManager for USB-MIDI.
-class MEDIA_EXPORT MidiManagerUsb : public MidiManager,
-                                    public UsbMidiDeviceDelegate,
-                                    public UsbMidiInputStream::Delegate {
+class USB_MIDI_EXPORT MidiManagerUsb
+    : public MidiManager,
+      public UsbMidiDeviceDelegate,
+      NON_EXPORTED_BASE(public UsbMidiInputStream::Delegate) {
  public:
   explicit MidiManagerUsb(scoped_ptr<UsbMidiDevice::Factory> device_factory);
   ~MidiManagerUsb() override;
 
   // MidiManager implementation.
   void StartInitialization() override;
   void DispatchSendMidiData(MidiManagerClient* client,
                             uint32 port_index,
                             const std::vector<uint8>& data,
                             double timestamp) override;
@@ skipping 42 matching lines @@
   base::hash_map<std::pair<int, int>, size_t> input_jack_dictionary_;
 
   scoped_ptr<MidiScheduler> scheduler_;
 
   DISALLOW_COPY_AND_ASSIGN(MidiManagerUsb);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_MIDI_MIDI_MANAGER_USB_H_