Move ENABLE_PEPPER_CDMS to a buildflag header.

content/renderer/media/cdm/render_cdm_factory.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_CDM_RENDER_CDM_FACTORY_H_
 #define CONTENT_RENDERER_MEDIA_CDM_RENDER_CDM_FACTORY_H_
 
 #include <memory>
 #include <string>
 
 #include "base/macros.h"
 #include "base/threading/thread_checker.h"
 #include "media/base/cdm_factory.h"
 #include "media/base/media_keys.h"
+#include "ppapi/features/features.h"
 
-#if defined(ENABLE_PEPPER_CDMS)
+#if BUILDFLAG(ENABLE_PEPPER_CDMS)
 #include "content/renderer/media/cdm/pepper_cdm_wrapper.h"
 #endif
 
 class GURL;
 
 namespace media {
 struct CdmConfig;
 }  // namespace media
 
 namespace content {
 
 // CdmFactory implementation in content/renderer. This class is not thread safe
 // and should only be used on one thread.
 class RenderCdmFactory : public media::CdmFactory {
  public:
-#if defined(ENABLE_PEPPER_CDMS)
+#if BUILDFLAG(ENABLE_PEPPER_CDMS)
   explicit RenderCdmFactory(const CreatePepperCdmCB& create_pepper_cdm_cb);
 #else
   RenderCdmFactory();
-#endif  // defined(ENABLE_PEPPER_CDMS)
+#endif  // BUILDFLAG(ENABLE_PEPPER_CDMS)
 
   ~RenderCdmFactory() override;
 
   // CdmFactory implementation.
   void Create(
       const std::string& key_system,
       const GURL& security_origin,
       const media::CdmConfig& cdm_config,
       const media::SessionMessageCB& session_message_cb,
       const media::SessionClosedCB& session_closed_cb,
       const media::SessionKeysChangeCB& session_keys_change_cb,
       const media::SessionExpirationUpdateCB& session_expiration_update_cb,
       const media::CdmCreatedCB& cdm_created_cb) override;
 
  private:
-#if defined(ENABLE_PEPPER_CDMS)
+#if BUILDFLAG(ENABLE_PEPPER_CDMS)
   CreatePepperCdmCB create_pepper_cdm_cb_;
 #endif
 
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderCdmFactory);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_CDM_RENDER_CDM_FACTORY_H_