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/api/rtc_event_log_output_file_unittest.cc b/api/rtc_event_log_output_file_unittest.cc
index bffda0c..071909b 100644
--- a/api/rtc_event_log_output_file_unittest.cc
+++ b/api/rtc_event_log_output_file_unittest.cc
@@ -15,7 +15,6 @@
 #include <memory>
 #include <string>
 
-#include "absl/memory/memory.h"
 #include "rtc_base/checks.h"
 #include "test/gtest.h"
 #include "test/testsupport/file_utils.h"
@@ -52,14 +51,13 @@
 };
 
 TEST_F(RtcEventLogOutputFileTest, NonDefectiveOutputsStartOutActive) {
-  auto output_file =
-      absl::make_unique<RtcEventLogOutputFile>(output_file_name_);
+  auto output_file = std::make_unique<RtcEventLogOutputFile>(output_file_name_);
   EXPECT_TRUE(output_file->IsActive());
 }
 
 TEST_F(RtcEventLogOutputFileTest, DefectiveOutputsStartOutInactive) {
   const std::string illegal_filename = "/////////";
-  auto output_file = absl::make_unique<RtcEventLogOutputFile>(illegal_filename);
+  auto output_file = std::make_unique<RtcEventLogOutputFile>(illegal_filename);
   EXPECT_FALSE(output_file->IsActive());
 }
 
@@ -67,8 +65,7 @@
 TEST_F(RtcEventLogOutputFileTest, UnlimitedOutputFile) {
   const std::string output_str = "one two three";
 
-  auto output_file =
-      absl::make_unique<RtcEventLogOutputFile>(output_file_name_);
+  auto output_file = std::make_unique<RtcEventLogOutputFile>(output_file_name_);
   output_file->Write(output_str);
   output_file.reset();  // Closing the file flushes the buffer to disk.
 
@@ -79,7 +76,7 @@
 TEST_F(RtcEventLogOutputFileTest, LimitedOutputFileCappedToCapacity) {
   // Fit two bytes, then the third should be rejected.
   auto output_file =
-      absl::make_unique<RtcEventLogOutputFile>(output_file_name_, 2);
+      std::make_unique<RtcEventLogOutputFile>(output_file_name_, 2);
 
   output_file->Write("1");
   output_file->Write("2");
@@ -99,7 +96,7 @@
   // Set a file size limit just shy of fitting the entire second line.
   const size_t size_limit = output_str_1.length() + output_str_2.length() - 1;
   auto output_file =
-      absl::make_unique<RtcEventLogOutputFile>(output_file_name_, size_limit);
+      std::make_unique<RtcEventLogOutputFile>(output_file_name_, size_limit);
 
   output_file->Write(output_str_1);
   output_file->Write(output_str_2);
@@ -110,20 +107,20 @@
 
 TEST_F(RtcEventLogOutputFileTest, UnsuccessfulWriteReturnsFalse) {
   auto output_file =
-      absl::make_unique<RtcEventLogOutputFile>(output_file_name_, 2);
+      std::make_unique<RtcEventLogOutputFile>(output_file_name_, 2);
   EXPECT_FALSE(output_file->Write("abc"));
 }
 
 TEST_F(RtcEventLogOutputFileTest, SuccessfulWriteReturnsTrue) {
   auto output_file =
-      absl::make_unique<RtcEventLogOutputFile>(output_file_name_, 3);
+      std::make_unique<RtcEventLogOutputFile>(output_file_name_, 3);
   EXPECT_TRUE(output_file->Write("abc"));
 }
 
 // Even if capacity is reached, a successful write leaves the output active.
 TEST_F(RtcEventLogOutputFileTest, FileStillActiveAfterSuccessfulWrite) {
   auto output_file =
-      absl::make_unique<RtcEventLogOutputFile>(output_file_name_, 3);
+      std::make_unique<RtcEventLogOutputFile>(output_file_name_, 3);
   ASSERT_TRUE(output_file->Write("abc"));
   EXPECT_TRUE(output_file->IsActive());
 }
@@ -132,13 +129,13 @@
 // not yet been reached.
 TEST_F(RtcEventLogOutputFileTest, FileInactiveAfterUnsuccessfulWrite) {
   auto output_file =
-      absl::make_unique<RtcEventLogOutputFile>(output_file_name_, 2);
+      std::make_unique<RtcEventLogOutputFile>(output_file_name_, 2);
   ASSERT_FALSE(output_file->Write("abc"));
   EXPECT_FALSE(output_file->IsActive());
 }
 
 TEST_F(RtcEventLogOutputFileTest, AllowReasonableFileSizeLimits) {
-  auto output_file = absl::make_unique<RtcEventLogOutputFile>(
+  auto output_file = std::make_unique<RtcEventLogOutputFile>(
       output_file_name_, RtcEventLogOutputFile::kMaxReasonableFileSize);
   EXPECT_TRUE(output_file->IsActive());
 }
@@ -158,8 +155,8 @@
   auto create_output_file = [&] {
     const size_t unreasonable_size =
         RtcEventLogOutputFile::kMaxReasonableFileSize + 1;
-    output_file = absl::make_unique<RtcEventLogOutputFile>(output_file_name_,
-                                                           unreasonable_size);
+    output_file = std::make_unique<RtcEventLogOutputFile>(output_file_name_,
+                                                          unreasonable_size);
   };
   EXPECT_DEATH(create_output_file(), "");
 }