Move enable_webrtc to a buildflag header.

content/renderer/media/rtc_certificate_generator.cc

 // Copyright (c) 2015 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.
 
 #include "content/renderer/media/rtc_certificate_generator.h"
 
 #include <string>
 #include <utility>
 
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/single_thread_task_runner.h"
 #include "content/renderer/media/rtc_certificate.h"
 #include "content/renderer/media/webrtc/peer_connection_dependency_factory.h"
 #include "content/renderer/render_thread_impl.h"
+#include "media/media_features.h"
 #include "third_party/webrtc/base/rtccertificate.h"
 #include "third_party/webrtc/base/rtccertificategenerator.h"
 #include "third_party/webrtc/base/scoped_ref_ptr.h"
 #include "url/gurl.h"
 
 namespace content {
 namespace {
 
 rtc::KeyParams WebRTCKeyParamsToKeyParams(
     const blink::WebRTCKeyParams& key_params) {
@@ skipping 102 matching lines @@
     std::unique_ptr<blink::WebRTCCertificateCallback> observer) {
   generateCertificateWithOptionalExpiration(
     key_params, rtc::Optional<uint64_t>(expires_ms), std::move(observer));
 }
 
 void RTCCertificateGenerator::generateCertificateWithOptionalExpiration(
     const blink::WebRTCKeyParams& key_params,
     const rtc::Optional<uint64_t>& expires_ms,
     std::unique_ptr<blink::WebRTCCertificateCallback> observer) {
   DCHECK(isSupportedKeyParams(key_params));
-#if defined(ENABLE_WEBRTC)
+#if BUILDFLAG(ENABLE_WEBRTC)
   const scoped_refptr<base::SingleThreadTaskRunner> main_thread =
       base::ThreadTaskRunnerHandle::Get();
   PeerConnectionDependencyFactory* pc_dependency_factory =
       RenderThreadImpl::current()->GetPeerConnectionDependencyFactory();
   pc_dependency_factory->EnsureInitialized();
 
   scoped_refptr<RTCCertificateGeneratorRequest> request =
       new RTCCertificateGeneratorRequest(
           main_thread,
           pc_dependency_factory->GetWebRtcWorkerThread());
@@ skipping 15 matching lines @@
   rtc::scoped_refptr<rtc::RTCCertificate> certificate =
       rtc::RTCCertificate::FromPEM(
           rtc::RTCCertificatePEM(pem_private_key.utf8(),
               pem_certificate.utf8()));
   if (!certificate)
     return nullptr;
   return base::MakeUnique<RTCCertificate>(certificate);
 }
 
 }  // namespace content