Revert of Re-Reland: Make media/capture gn and gyps produce components

media/capture/device_monitor_mac.h

 // Copyright (c) 2012 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_CAPTURE_DEVICE_MONITOR_MAC_H_
 #define MEDIA_CAPTURE_DEVICE_MONITOR_MAC_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "base/system_monitor/system_monitor.h"
 #include "base/threading/thread_checker.h"
-#include "media/capture/capture_export.h"
+#include "media/base/media_export.h"
 
 namespace {
 class DeviceMonitorMacImpl;
 }
 
 namespace media {
 
 // Class to track audio/video devices removal or addition via callback to
 // base::SystemMonitor ProcessDevicesChanged(). A single object of this class
 // is created from the browser main process and lives as long as this one.
-class CAPTURE_EXPORT DeviceMonitorMac {
+class MEDIA_EXPORT DeviceMonitorMac {
  public:
   DeviceMonitorMac();
   ~DeviceMonitorMac();
 
   // Registers the observers for the audio/video device removal, connection and
   // suspension. The AVFoundation library is also loaded and initialised if the
   // OS supports it. The |device_task_runner| argument represents the thread on
   // which device enumeration will occur.
   void StartMonitoring(
       const scoped_refptr<base::SingleThreadTaskRunner>& device_task_runner);
 
   // Method called by the internal DeviceMonitorMacImpl object
   // |device_monitor_impl_| when a device of type |type| has been added to or
   // removed from the system. This code executes in the notification thread.
   void NotifyDeviceChanged(base::SystemMonitor::DeviceType type);
 
  private:
   std::unique_ptr<DeviceMonitorMacImpl> device_monitor_impl_;
 
   // |thread_checker_| is used to check that constructor and StartMonitoring()
   // are called in the correct thread, the UI thread, that also owns the object.
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(DeviceMonitorMac);
 };
 
 }  // namespace content
 
 #endif  // MEDIA_CAPTURE_DEVICE_MONITOR_MAC_H_