diff --git a/packager/hls/base/simple_hls_notifier.cc b/packager/hls/base/simple_hls_notifier.cc
index 730f6f2c1a..e9fd7e074e 100644
--- a/packager/hls/base/simple_hls_notifier.cc
+++ b/packager/hls/base/simple_hls_notifier.cc
@@ -313,8 +313,8 @@ bool SimpleHlsNotifier::NotifyNewStream(const MediaInfo& media_info,
     encryption_method = enc_method.value();
   }
 
-  *stream_id = sequence_number_.GetNext();
   base::AutoLock auto_lock(lock_);
+  *stream_id = sequence_number_++;
   media_playlists_.push_back(media_playlist.get());
   stream_map_[*stream_id].reset(
       new StreamEntry{std::move(media_playlist), encryption_method});
diff --git a/packager/hls/base/simple_hls_notifier.h b/packager/hls/base/simple_hls_notifier.h
index 8a558127b9..d835169191 100644
--- a/packager/hls/base/simple_hls_notifier.h
+++ b/packager/hls/base/simple_hls_notifier.h
@@ -13,7 +13,6 @@
 #include <string>
 #include <vector>
 
-#include "packager/base/atomic_sequence_num.h"
 #include "packager/base/macros.h"
 #include "packager/base/synchronization/lock.h"
 #include "packager/hls/base/hls_notifier.h"
@@ -88,7 +87,7 @@ class SimpleHlsNotifier : public HlsNotifier {
   std::map<uint32_t, std::unique_ptr<StreamEntry>> stream_map_;
   std::list<MediaPlaylist*> media_playlists_;
 
-  base::AtomicSequenceNumber sequence_number_;
+  uint32_t sequence_number_ = 0;
 
   base::Lock lock_;
 
diff --git a/packager/mpd/base/adaptation_set.cc b/packager/mpd/base/adaptation_set.cc
index 8959960350..782847237b 100644
--- a/packager/mpd/base/adaptation_set.cc
+++ b/packager/mpd/base/adaptation_set.cc
@@ -168,7 +168,7 @@ class RepresentationStateChangeListenerImpl
 
 AdaptationSet::AdaptationSet(const std::string& language,
                              const MpdOptions& mpd_options,
-                             base::AtomicSequenceNumber* counter)
+                             uint32_t* counter)
     : representation_counter_(counter),
       language_(language),
       mpd_options_(mpd_options),
@@ -180,7 +180,7 @@ AdaptationSet::AdaptationSet(const std::string& language,
 AdaptationSet::~AdaptationSet() {}
 
 Representation* AdaptationSet::AddRepresentation(const MediaInfo& media_info) {
-  const uint32_t representation_id = representation_counter_->GetNext();
+  const uint32_t representation_id = (*representation_counter_)++;
   // Note that AdaptationSet outlive Representation, so this object
   // will die before AdaptationSet.
   std::unique_ptr<RepresentationStateChangeListener> listener(
diff --git a/packager/mpd/base/adaptation_set.h b/packager/mpd/base/adaptation_set.h
index 86a531e27b..41911cfc6b 100644
--- a/packager/mpd/base/adaptation_set.h
+++ b/packager/mpd/base/adaptation_set.h
@@ -17,7 +17,6 @@
 #include <set>
 #include <vector>
 
-#include "packager/base/atomic_sequence_num.h"
 #include "packager/base/optional.h"
 #include "packager/mpd/base/xml/scoped_xml_ptr.h"
 
@@ -178,7 +177,7 @@ class AdaptationSet {
   ///        Representation. It can not be NULL.
   AdaptationSet(const std::string& language,
                 const MpdOptions& mpd_options,
-                base::AtomicSequenceNumber* representation_counter);
+                uint32_t* representation_counter);
 
  private:
   AdaptationSet(const AdaptationSet&) = delete;
@@ -235,7 +234,7 @@ class AdaptationSet {
   // sorted by default.
   std::map<uint32_t, std::unique_ptr<Representation>> representation_map_;
 
-  base::AtomicSequenceNumber* const representation_counter_;
+  uint32_t* const representation_counter_;
 
   base::Optional<uint32_t> id_;
   const std::string language_;
diff --git a/packager/mpd/base/adaptation_set_unittest.cc b/packager/mpd/base/adaptation_set_unittest.cc
index 820dc4528f..b145e8df9e 100644
--- a/packager/mpd/base/adaptation_set_unittest.cc
+++ b/packager/mpd/base/adaptation_set_unittest.cc
@@ -33,7 +33,7 @@ class AdaptationSetTest : public ::testing::Test {
 
  protected:
   MpdOptions mpd_options_;
-  base::AtomicSequenceNumber representation_counter_;
+  uint32_t representation_counter_ = 0;
 };
 
 class OnDemandAdaptationSetTest : public AdaptationSetTest {
diff --git a/packager/mpd/base/mock_mpd_builder.h b/packager/mpd/base/mock_mpd_builder.h
index 2ec4a74fe1..6d46396f30 100644
--- a/packager/mpd/base/mock_mpd_builder.h
+++ b/packager/mpd/base/mock_mpd_builder.h
@@ -38,7 +38,7 @@ class MockPeriod : public Period {
 
  private:
   // Only for constructing the super class. Not used for testing.
-  base::AtomicSequenceNumber sequence_counter_;
+  uint32_t sequence_counter_ = 0;
 };
 
 class MockAdaptationSet : public AdaptationSet {
@@ -62,7 +62,7 @@ class MockAdaptationSet : public AdaptationSet {
 
  private:
   // Only for constructing the super class. Not used for testing.
-  base::AtomicSequenceNumber sequence_counter_;
+  uint32_t sequence_counter_ = 0;
 };
 
 class MockRepresentation : public Representation {
diff --git a/packager/mpd/base/mpd_builder.cc b/packager/mpd/base/mpd_builder.cc
index ad01f7c08e..8cb405505c 100644
--- a/packager/mpd/base/mpd_builder.cc
+++ b/packager/mpd/base/mpd_builder.cc
@@ -131,9 +131,8 @@ Period* MpdBuilder::GetOrCreatePeriod(double start_time_in_seconds) {
     if (match)
       return period.get();
   }
-  periods_.emplace_back(new Period(period_counter_.GetNext(),
-                                   start_time_in_seconds, mpd_options_,
-                                   &representation_counter_));
+  periods_.emplace_back(new Period(period_counter_++, start_time_in_seconds,
+                                   mpd_options_, &representation_counter_));
   return periods_.back().get();
 }
 
diff --git a/packager/mpd/base/mpd_builder.h b/packager/mpd/base/mpd_builder.h
index 9a81df8cb9..cba41001c5 100644
--- a/packager/mpd/base/mpd_builder.h
+++ b/packager/mpd/base/mpd_builder.h
@@ -17,7 +17,6 @@
 #include <memory>
 #include <string>
 
-#include "packager/base/atomic_sequence_num.h"
 #include "packager/base/time/clock.h"
 #include "packager/mpd/base/mpd_options.h"
 
@@ -122,8 +121,8 @@ class MpdBuilder {
   std::list<std::string> base_urls_;
   std::string availability_start_time_;
 
-  base::AtomicSequenceNumber period_counter_;
-  base::AtomicSequenceNumber representation_counter_;
+  uint32_t period_counter_ = 0;
+  uint32_t representation_counter_ = 0;
 
   // By default, this returns the current time. This can be injected for
   // testing.
diff --git a/packager/mpd/base/mpd_builder_unittest.cc b/packager/mpd/base/mpd_builder_unittest.cc
index c33c89b79d..0f129b9a29 100644
--- a/packager/mpd/base/mpd_builder_unittest.cc
+++ b/packager/mpd/base/mpd_builder_unittest.cc
@@ -96,7 +96,6 @@ class MpdBuilderTest : public ::testing::Test {
 
  private:
   Period* period_ = nullptr;
-  base::AtomicSequenceNumber representation_counter_;
 
   DISALLOW_COPY_AND_ASSIGN(MpdBuilderTest);
 };
diff --git a/packager/mpd/base/period.cc b/packager/mpd/base/period.cc
index 08952ac690..fa41da2d67 100644
--- a/packager/mpd/base/period.cc
+++ b/packager/mpd/base/period.cc
@@ -37,7 +37,7 @@ std::set<std::string> GetUUIDs(
 Period::Period(uint32_t period_id,
                double start_time_in_seconds,
                const MpdOptions& mpd_options,
-               base::AtomicSequenceNumber* representation_counter)
+               uint32_t* representation_counter)
     : id_(period_id),
       start_time_in_seconds_(start_time_in_seconds),
       mpd_options_(mpd_options),
@@ -139,7 +139,7 @@ const std::list<AdaptationSet*> Period::GetAdaptationSets() const {
 std::unique_ptr<AdaptationSet> Period::NewAdaptationSet(
     const std::string& language,
     const MpdOptions& options,
-    base::AtomicSequenceNumber* representation_counter) {
+    uint32_t* representation_counter) {
   return std::unique_ptr<AdaptationSet>(
       new AdaptationSet(language, options, representation_counter));
 }
diff --git a/packager/mpd/base/period.h b/packager/mpd/base/period.h
index e4955d3578..7a4b0ad37d 100644
--- a/packager/mpd/base/period.h
+++ b/packager/mpd/base/period.h
@@ -12,7 +12,6 @@
 #include <list>
 #include <map>
 
-#include "packager/base/atomic_sequence_num.h"
 #include "packager/base/optional.h"
 #include "packager/mpd/base/adaptation_set.h"
 #include "packager/mpd/base/media_info.pb.h"
@@ -76,7 +75,7 @@ class Period {
   Period(uint32_t period_id,
          double start_time_in_seconds,
          const MpdOptions& mpd_options,
-         base::AtomicSequenceNumber* representation_counter);
+         uint32_t* representation_counter);
 
  private:
   Period(const Period&) = delete;
@@ -89,7 +88,7 @@ class Period {
   virtual std::unique_ptr<AdaptationSet> NewAdaptationSet(
       const std::string& lang,
       const MpdOptions& options,
-      base::AtomicSequenceNumber* representation_counter);
+      uint32_t* representation_counter);
 
   // Helper function to set new AdaptationSet attributes.
   bool SetNewAdaptationSetAttributes(
@@ -109,7 +108,7 @@ class Period {
   const double start_time_in_seconds_;
   double duration_seconds_ = 0;
   const MpdOptions& mpd_options_;
-  base::AtomicSequenceNumber* const representation_counter_;
+  uint32_t* const representation_counter_;
   std::list<std::unique_ptr<AdaptationSet>> adaptation_sets_;
   // AdaptationSets grouped by a specific adaptation set grouping key.
   // AdaptationSets with the same key contain identical parameters except
diff --git a/packager/mpd/base/period_unittest.cc b/packager/mpd/base/period_unittest.cc
index 7e94befb54..0c5afa5f75 100644
--- a/packager/mpd/base/period_unittest.cc
+++ b/packager/mpd/base/period_unittest.cc
@@ -80,15 +80,15 @@ class TestablePeriod : public Period {
                mpd_options,
                &sequence_number_) {}
 
-  MOCK_METHOD3(NewAdaptationSet,
-               std::unique_ptr<AdaptationSet>(
-                   const std::string& lang,
-                   const MpdOptions& options,
-                   base::AtomicSequenceNumber* representation_counter));
+  MOCK_METHOD3(
+      NewAdaptationSet,
+      std::unique_ptr<AdaptationSet>(const std::string& lang,
+                                     const MpdOptions& options,
+                                     uint32_t* representation_counter));
 
  private:
   // Only for constructing the super class. Not used for testing.
-  base::AtomicSequenceNumber sequence_number_;
+  uint32_t sequence_number_ = 0;
 };
 
 }  // namespace