Replace NULL with nullptr in all C++ files.

webrtc/pc/jsepsessiondescription.cc

 /*
  *  Copyright 2012 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 31 matching lines @@
 const char SessionDescriptionInterface::kPrAnswer[] = "pranswer";
 const char SessionDescriptionInterface::kAnswer[] = "answer";
 
 const int JsepSessionDescription::kDefaultVideoCodecId = 100;
 const char JsepSessionDescription::kDefaultVideoCodecName[] = "VP8";
 
 SessionDescriptionInterface* CreateSessionDescription(const std::string& type,
                                                       const std::string& sdp,
                                                       SdpParseError* error) {
   if (!IsTypeSupported(type)) {
-    return NULL;
+    return nullptr;
   }
 
   JsepSessionDescription* jsep_desc = new JsepSessionDescription(type);
   if (!jsep_desc->Initialize(sdp, error)) {
     delete jsep_desc;
-    return NULL;
+    return nullptr;
   }
   return jsep_desc;
 }
 
 JsepSessionDescription::JsepSessionDescription(const std::string& type)
     : type_(type) {
 }
 
 JsepSessionDescription::~JsepSessionDescription() {}
 
@@ skipping 70 matching lines @@
 
 size_t JsepSessionDescription::number_of_mediasections() const {
   if (!description_)
     return 0;
   return description_->contents().size();
 }
 
 const IceCandidateCollection* JsepSessionDescription::candidates(
     size_t mediasection_index) const {
   if (mediasection_index >= candidate_collection_.size())
-    return NULL;
+    return nullptr;
   return &candidate_collection_[mediasection_index];
 }
 
 bool JsepSessionDescription::ToString(std::string* out) const {
   if (!description_ || !out) {
     return false;
   }
   *out = SdpSerialize(*this, false);
   return !out->empty();
 }
@@ skipping 30 matching lines @@
   const std::string& transport_name = candidate.transport_name();
   for (size_t i = 0; i < description_->contents().size(); ++i) {
     if (transport_name == description_->contents().at(i).name) {
       return static_cast<int>(i);
     }
   }
   return -1;
 }
 
 }  // namespace webrtc