Include-what-you-use for ThreadTaskRunnerHandle.

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 "base/threading/thread_task_runner_handle.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 {
@@ skipping 142 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