Use std::make_unique instead of absl::make_unique.

WebRTC is now using C++14 so there is no need to use the Abseil version
of std::make_unique.

This CL has been created with the following steps:

git grep -l absl::make_unique | sort | uniq > /tmp/make_unique.txt
git grep -l absl::WrapUnique | sort | uniq > /tmp/wrap_unique.txt
git grep -l "#include <memory>" | sort | uniq > /tmp/memory.txt

diff --new-line-format="" --unchanged-line-format="" \
  /tmp/make_unique.txt /tmp/wrap_unique.txt | sort | \
  uniq > /tmp/only_make_unique.txt
diff --new-line-format="" --unchanged-line-format="" \
  /tmp/only_make_unique.txt /tmp/memory.txt | \
  xargs grep -l "absl/memory" > /tmp/add-memory.txt

git grep -l "\babsl::make_unique\b" | \
  xargs sed -i "s/\babsl::make_unique\b/std::make_unique/g"

git checkout PRESUBMIT.py abseil-in-webrtc.md

cat /tmp/add-memory.txt | \
  xargs sed -i \
  's/#include "absl\/memory\/memory.h"/#include <memory>/g'
git cl format
# Manual fix order of the new inserted #include <memory>

cat /tmp/only_make_unique | xargs grep -l "#include <memory>" | \
  xargs sed -i '/#include "absl\/memory\/memory.h"/d'

git ls-files | grep BUILD.gn | \
  xargs sed -i '/\/\/third_party\/abseil-cpp\/absl\/memory/d'

python tools_webrtc/gn_check_autofix.py \
  -m tryserver.webrtc -b linux_rel

# Repead the gn_check_autofix step for other platforms

git ls-files | grep BUILD.gn | \
  xargs sed -i 's/absl\/memory:memory/absl\/memory/g'
git cl format

Bug: webrtc:10945
Change-Id: I3fe28ea80f4dd3ba3cf28effd151d5e1f19aff89
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/153221
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Alessio Bazzica <alessiob@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29209}
diff --git a/rtc_tools/rtc_event_log_visualizer/analyzer.cc b/rtc_tools/rtc_event_log_visualizer/analyzer.cc
index 60574ee..126d9ca 100644
--- a/rtc_tools/rtc_event_log_visualizer/analyzer.cc
+++ b/rtc_tools/rtc_event_log_visualizer/analyzer.cc
@@ -14,10 +14,10 @@
 #include <cmath>
 #include <limits>
 #include <map>
+#include <memory>
 #include <string>
 #include <utility>
 
-#include "absl/memory/memory.h"
 #include "absl/strings/string_view.h"
 #include "api/function_view.h"
 #include "api/transport/field_trial_based_config.h"
@@ -1168,7 +1168,7 @@
                            PointStyle::kHighlight);
 
   LogBasedNetworkControllerSimulation simulation(
-      absl::make_unique<GoogCcNetworkControllerFactory>(),
+      std::make_unique<GoogCcNetworkControllerFactory>(),
       [&](const NetworkControlUpdate& update, Timestamp at_time) {
         if (update.target_rate) {
           target_rates.points.emplace_back(
@@ -1275,7 +1275,7 @@
   // GoogCcNetworkController since that would lead to duplicate outputs.
   AcknowledgedBitrateEstimator acknowledged_bitrate_estimator(
       &field_trial_config_,
-      absl::make_unique<BitrateEstimator>(&field_trial_config_));
+      std::make_unique<BitrateEstimator>(&field_trial_config_));
 #endif  // !(BWE_TEST_LOGGING_COMPILE_TIME_ENABLE)
   int64_t time_us =
       std::min({NextRtpTime(), NextRtcpTime(), NextProcessTime()});
@@ -1880,10 +1880,10 @@
   std::unique_ptr<AudioDecoder> MakeAudioDecoder(
       const SdpAudioFormat& format,
       absl::optional<AudioCodecPairId> codec_pair_id) override {
-    auto replacement_file = absl::make_unique<test::ResampleInputAudioFile>(
+    auto replacement_file = std::make_unique<test::ResampleInputAudioFile>(
         replacement_file_name_, file_sample_rate_hz_);
     replacement_file->set_output_rate_hz(48000);
-    return absl::make_unique<test::FakeDecodeFromFile>(
+    return std::make_unique<test::FakeDecodeFromFile>(
         std::move(replacement_file), 48000, false);
   }