Stop preemptively generating an RSA key pair.

webrtc/api/dtlsidentitystore.cc

 /*
  *  Copyright 2015 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 90 matching lines @@
   DtlsIdentityStoreImpl* store_;  // Only touched on |signaling_thread_|.
   const rtc::KeyType key_type_;
 };
 
 DtlsIdentityStoreImpl::DtlsIdentityStoreImpl(rtc::Thread* signaling_thread,
                                              rtc::Thread* worker_thread)
     : signaling_thread_(signaling_thread),
       worker_thread_(worker_thread),
       request_info_() {
   RTC_DCHECK(signaling_thread_->IsCurrent());
-  // Preemptively generate identities unless the worker thread and signaling
-  // thread are the same (only do preemptive work in the background).
-  if (worker_thread_ != signaling_thread_) {
-    // Only necessary for RSA.
-    GenerateIdentity(rtc::KT_RSA, nullptr);
-  }
 }
 
 DtlsIdentityStoreImpl::~DtlsIdentityStoreImpl() {
   RTC_DCHECK(signaling_thread_->IsCurrent());
   SignalDestroyed();
 }
 
 void DtlsIdentityStoreImpl::RequestIdentity(
     const rtc::KeyParams& key_params,
     const rtc::Optional<uint64_t>& expires_ms,
@@ skipping 92 matching lines @@
       observer->OnSuccess(std::move(identity));
     } else {
       LOG(LS_WARNING) << "Failed to generate DTLS identity.";
       observer->OnFailure(0);
     }
 
     // Preemptively generate another identity of the same type?
     if (worker_thread_ != signaling_thread_ && // Only do in background thread.
         key_type == rtc::KT_RSA &&             // Only necessary for RSA.
         !request_info_[key_type].free_identity_.get() &&
-        request_info_[key_type].request_observers_.size() <=
+        request_info_[key_type].request_observers_.size() ==
             request_info_[key_type].gen_in_progress_counts_) {
       GenerateIdentity(key_type, nullptr);
     }
   }
 }
 
 }  // namespace webrtc