Reland "in WebrtcVoiceEngine allow to set TaskQueueFactory"

in production code keep using GlobalTaskQueueFactory()
in tests switch to use DefaultTaskQueueFactory directly.

This reverts commit e27ccf9a1681e0e4ff9281f9a18fea357d2bc890.

Reason for revert: addressed the failure with patchset#2

Original change's description:
> Revert "in WebrtcVoiceEngine allow to set TaskQueueFactory"
>
> This reverts commit a39254da593bbdb0b1e072a44827229680afe3ee.
>
> Reason for revert: Tests are failing due to ThreadChecker's called on valid thread.
>
> Original change's description:
> > in WebrtcVoiceEngine allow to set TaskQueueFactory
> >
> > in production code keep using GlobalTaskQueueFactory()
> > in tests switch to use DefaultTaskQueueFactory directly.
> >
> > Bug: webrtc:10284
> > Change-Id: I170274a98324796623089a965a39f0cbb7e281d9
> > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/128878
> > Reviewed-by: Steve Anton <steveanton@webrtc.org>
> > Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
> > Cr-Commit-Position: refs/heads/master@{#27296}
>
> TBR=danilchap@webrtc.org,steveanton@webrtc.org
>
> Change-Id: I9742e5d0171a94f3840e197c40fdb44523e4963b
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Bug: webrtc:10284
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/129780
> Reviewed-by: Amit Hilbuch <amithi@webrtc.org>
> Commit-Queue: Amit Hilbuch <amithi@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#27297}

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: webrtc:10284
Change-Id: I55fd5811c68d04c3e8cf537974496460b38c1d4f
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/129933
Reviewed-by: Steve Anton <steveanton@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27348}
diff --git a/media/BUILD.gn b/media/BUILD.gn
index 26a17a1..d02ef89 100644
--- a/media/BUILD.gn
+++ b/media/BUILD.gn
@@ -260,6 +260,8 @@
   libs = []
   deps = [
     "../api:scoped_refptr",
+    "../api/task_queue",
+    "../api/task_queue:global_task_queue_factory",
     "../api/video:video_bitrate_allocation",
     "../api/video:video_bitrate_allocator_factory",
     "../modules/audio_processing:api",
@@ -493,6 +495,8 @@
       "../:webrtc_common",
       "../api:fake_media_transport",
       "../api:scoped_refptr",
+      "../api/task_queue",
+      "../api/task_queue:default_task_queue_factory",
       "../api/test/video:function_video_factory",
       "../api/units:time_delta",
       "../api/video:video_frame_i420",
diff --git a/media/engine/null_webrtc_video_engine_unittest.cc b/media/engine/null_webrtc_video_engine_unittest.cc
index 85eaea3..343e167 100644
--- a/media/engine/null_webrtc_video_engine_unittest.cc
+++ b/media/engine/null_webrtc_video_engine_unittest.cc
@@ -9,7 +9,13 @@
  */
 
 #include "media/engine/null_webrtc_video_engine.h"
+
+#include <memory>
+#include <utility>
+
 #include "absl/memory/memory.h"
+#include "api/task_queue/default_task_queue_factory.h"
+#include "api/task_queue/task_queue_factory.h"
 #include "media/engine/webrtc_voice_engine.h"
 #include "modules/audio_device/include/mock_audio_device.h"
 #include "modules/audio_processing/include/audio_processing.h"
@@ -19,30 +25,21 @@
 
 namespace cricket {
 
-class WebRtcMediaEngineNullVideo : public CompositeMediaEngine {
- public:
-  WebRtcMediaEngineNullVideo(
-      webrtc::AudioDeviceModule* adm,
-      const rtc::scoped_refptr<webrtc::AudioEncoderFactory>&
-          audio_encoder_factory,
-      const rtc::scoped_refptr<webrtc::AudioDecoderFactory>&
-          audio_decoder_factory)
-      : CompositeMediaEngine(absl::make_unique<WebRtcVoiceEngine>(
-                                 adm,
-                                 audio_encoder_factory,
-                                 audio_decoder_factory,
-                                 nullptr,
-                                 webrtc::AudioProcessingBuilder().Create()),
-                             absl::make_unique<NullWebRtcVideoEngine>()) {}
-};
-
 // Simple test to check if NullWebRtcVideoEngine implements the methods
 // required by CompositeMediaEngine.
 TEST(NullWebRtcVideoEngineTest, CheckInterface) {
+  std::unique_ptr<webrtc::TaskQueueFactory> task_queue_factory =
+      webrtc::CreateDefaultTaskQueueFactory();
   testing::NiceMock<webrtc::test::MockAudioDeviceModule> adm;
-  WebRtcMediaEngineNullVideo engine(
-      &adm, webrtc::MockAudioEncoderFactory::CreateUnusedFactory(),
-      webrtc::MockAudioDecoderFactory::CreateUnusedFactory());
+  auto audio_engine = absl::make_unique<WebRtcVoiceEngine>(
+      task_queue_factory.get(), &adm,
+      webrtc::MockAudioEncoderFactory::CreateUnusedFactory(),
+      webrtc::MockAudioDecoderFactory::CreateUnusedFactory(), nullptr,
+      webrtc::AudioProcessingBuilder().Create());
+
+  CompositeMediaEngine engine(std::move(audio_engine),
+                              absl::make_unique<NullWebRtcVideoEngine>());
+
   EXPECT_TRUE(engine.Init());
 }
 
diff --git a/media/engine/webrtc_media_engine.cc b/media/engine/webrtc_media_engine.cc
index 5de0927..48269ee 100644
--- a/media/engine/webrtc_media_engine.cc
+++ b/media/engine/webrtc_media_engine.cc
@@ -14,6 +14,7 @@
 
 #include "absl/algorithm/container.h"
 #include "absl/memory/memory.h"
+#include "api/task_queue/global_task_queue_factory.h"
 #include "api/video/builtin_video_bitrate_allocator_factory.h"
 #include "api/video_codecs/video_decoder_factory.h"
 #include "api/video_codecs/video_encoder_factory.h"
@@ -61,9 +62,9 @@
   auto video_engine = absl::make_unique<NullWebRtcVideoEngine>();
 #endif
   return std::unique_ptr<MediaEngineInterface>(new CompositeMediaEngine(
-      absl::make_unique<WebRtcVoiceEngine>(adm, audio_encoder_factory,
-                                           audio_decoder_factory, audio_mixer,
-                                           audio_processing),
+      absl::make_unique<WebRtcVoiceEngine>(
+          &webrtc::GlobalTaskQueueFactory(), adm, audio_encoder_factory,
+          audio_decoder_factory, audio_mixer, audio_processing),
       std::move(video_engine)));
 }
 
diff --git a/media/engine/webrtc_voice_engine.cc b/media/engine/webrtc_voice_engine.cc
index cbf66ba..ebc4334 100644
--- a/media/engine/webrtc_voice_engine.cc
+++ b/media/engine/webrtc_voice_engine.cc
@@ -178,12 +178,14 @@
 }  // namespace
 
 WebRtcVoiceEngine::WebRtcVoiceEngine(
+    webrtc::TaskQueueFactory* task_queue_factory,
     webrtc::AudioDeviceModule* adm,
     const rtc::scoped_refptr<webrtc::AudioEncoderFactory>& encoder_factory,
     const rtc::scoped_refptr<webrtc::AudioDecoderFactory>& decoder_factory,
     rtc::scoped_refptr<webrtc::AudioMixer> audio_mixer,
     rtc::scoped_refptr<webrtc::AudioProcessing> audio_processing)
-    : adm_(adm),
+    : task_queue_factory_(task_queue_factory),
+      adm_(adm),
       encoder_factory_(encoder_factory),
       decoder_factory_(decoder_factory),
       audio_mixer_(audio_mixer),
@@ -218,7 +220,8 @@
 
   // TaskQueue expects to be created/destroyed on the same thread.
   low_priority_worker_queue_.reset(
-      new rtc::TaskQueue("rtc-low-prio", rtc::TaskQueue::Priority::LOW));
+      new rtc::TaskQueue(task_queue_factory_->CreateTaskQueue(
+          "rtc-low-prio", webrtc::TaskQueueFactory::Priority::LOW)));
 
   // Load our audio codec lists.
   RTC_LOG(LS_INFO) << "Supported send codecs in order of preference:";
diff --git a/media/engine/webrtc_voice_engine.h b/media/engine/webrtc_voice_engine.h
index 1cf1ccb..f03bdfb 100644
--- a/media/engine/webrtc_voice_engine.h
+++ b/media/engine/webrtc_voice_engine.h
@@ -19,6 +19,7 @@
 #include "api/audio_codecs/audio_encoder_factory.h"
 #include "api/rtp_receiver_interface.h"
 #include "api/scoped_refptr.h"
+#include "api/task_queue/task_queue_factory.h"
 #include "call/audio_state.h"
 #include "call/call.h"
 #include "media/base/rtp_utils.h"
@@ -46,6 +47,7 @@
 
  public:
   WebRtcVoiceEngine(
+      webrtc::TaskQueueFactory* task_queue_factory,
       webrtc::AudioDeviceModule* adm,
       const rtc::scoped_refptr<webrtc::AudioEncoderFactory>& encoder_factory,
       const rtc::scoped_refptr<webrtc::AudioDecoderFactory>& decoder_factory,
@@ -91,6 +93,7 @@
   void StartAecDump(const std::string& filename);
   int CreateVoEChannel();
 
+  webrtc::TaskQueueFactory* const task_queue_factory_;
   std::unique_ptr<rtc::TaskQueue> low_priority_worker_queue_;
 
   webrtc::AudioDeviceModule* adm();
diff --git a/media/engine/webrtc_voice_engine_unittest.cc b/media/engine/webrtc_voice_engine_unittest.cc
index 8930b99..969c10c 100644
--- a/media/engine/webrtc_voice_engine_unittest.cc
+++ b/media/engine/webrtc_voice_engine_unittest.cc
@@ -16,6 +16,7 @@
 #include "api/audio_codecs/builtin_audio_encoder_factory.h"
 #include "api/rtp_parameters.h"
 #include "api/scoped_refptr.h"
+#include "api/task_queue/default_task_queue_factory.h"
 #include "call/call.h"
 #include "logging/rtc_event_log/rtc_event_log.h"
 #include "media/base/fake_media_engine.h"
@@ -136,6 +137,8 @@
 
 // Tests that our stub library "works".
 TEST(WebRtcVoiceEngineTestStubLibrary, StartupShutdown) {
+  std::unique_ptr<webrtc::TaskQueueFactory> task_queue_factory =
+      webrtc::CreateDefaultTaskQueueFactory();
   StrictMock<webrtc::test::MockAudioDeviceModule> adm;
   AdmSetupExpectations(&adm);
   rtc::scoped_refptr<StrictMock<webrtc::test::MockAudioProcessing>> apm =
@@ -148,7 +151,8 @@
   EXPECT_CALL(*apm, DetachAecDump());
   {
     cricket::WebRtcVoiceEngine engine(
-        &adm, webrtc::MockAudioEncoderFactory::CreateUnusedFactory(),
+        task_queue_factory.get(), &adm,
+        webrtc::MockAudioEncoderFactory::CreateUnusedFactory(),
         webrtc::MockAudioDecoderFactory::CreateUnusedFactory(), nullptr, apm);
     engine.Init();
   }
@@ -168,7 +172,8 @@
   WebRtcVoiceEngineTestFake() : WebRtcVoiceEngineTestFake("") {}
 
   explicit WebRtcVoiceEngineTestFake(const char* field_trials)
-      : apm_(new rtc::RefCountedObject<
+      : task_queue_factory_(webrtc::CreateDefaultTaskQueueFactory()),
+        apm_(new rtc::RefCountedObject<
              StrictMock<webrtc::test::MockAudioProcessing>>()),
         apm_ns_(*apm_->noise_suppression()),
         call_(),
@@ -189,7 +194,8 @@
     auto encoder_factory = webrtc::CreateBuiltinAudioEncoderFactory();
     auto decoder_factory = webrtc::CreateBuiltinAudioDecoderFactory();
     engine_.reset(new cricket::WebRtcVoiceEngine(
-        &adm_, encoder_factory, decoder_factory, nullptr, apm_));
+        task_queue_factory_.get(), &adm_, encoder_factory, decoder_factory,
+        nullptr, apm_));
     engine_->Init();
     send_parameters_.codecs.push_back(kPcmuCodec);
     recv_parameters_.codecs.push_back(kPcmuCodec);
@@ -756,6 +762,7 @@
   }
 
  protected:
+  std::unique_ptr<webrtc::TaskQueueFactory> task_queue_factory_;
   StrictMock<webrtc::test::MockAudioDeviceModule> adm_;
   rtc::scoped_refptr<StrictMock<webrtc::test::MockAudioProcessing>> apm_;
   webrtc::test::MockNoiseSuppression& apm_ns_;
@@ -3499,11 +3506,14 @@
 TEST(WebRtcVoiceEngineTest, StartupShutdown) {
   // If the VoiceEngine wants to gather available codecs early, that's fine but
   // we never want it to create a decoder at this stage.
+  std::unique_ptr<webrtc::TaskQueueFactory> task_queue_factory =
+      webrtc::CreateDefaultTaskQueueFactory();
   testing::NiceMock<webrtc::test::MockAudioDeviceModule> adm;
   rtc::scoped_refptr<webrtc::AudioProcessing> apm =
       webrtc::AudioProcessingBuilder().Create();
   cricket::WebRtcVoiceEngine engine(
-      &adm, webrtc::MockAudioEncoderFactory::CreateUnusedFactory(),
+      task_queue_factory.get(), &adm,
+      webrtc::MockAudioEncoderFactory::CreateUnusedFactory(),
       webrtc::MockAudioDecoderFactory::CreateUnusedFactory(), nullptr, apm);
   engine.Init();
   webrtc::RtcEventLogNullImpl event_log;
@@ -3518,6 +3528,8 @@
 
 // Tests that reference counting on the external ADM is correct.
 TEST(WebRtcVoiceEngineTest, StartupShutdownWithExternalADM) {
+  std::unique_ptr<webrtc::TaskQueueFactory> task_queue_factory =
+      webrtc::CreateDefaultTaskQueueFactory();
   testing::NiceMock<webrtc::test::MockAudioDeviceModule> adm;
   EXPECT_CALL(adm, AddRef()).Times(3);
   EXPECT_CALL(adm, Release())
@@ -3527,7 +3539,8 @@
     rtc::scoped_refptr<webrtc::AudioProcessing> apm =
         webrtc::AudioProcessingBuilder().Create();
     cricket::WebRtcVoiceEngine engine(
-        &adm, webrtc::MockAudioEncoderFactory::CreateUnusedFactory(),
+        task_queue_factory.get(), &adm,
+        webrtc::MockAudioEncoderFactory::CreateUnusedFactory(),
         webrtc::MockAudioDecoderFactory::CreateUnusedFactory(), nullptr, apm);
     engine.Init();
     webrtc::RtcEventLogNullImpl event_log;
@@ -3543,13 +3556,16 @@
 
 // Verify the payload id of common audio codecs, including CN, ISAC, and G722.
 TEST(WebRtcVoiceEngineTest, HasCorrectPayloadTypeMapping) {
+  std::unique_ptr<webrtc::TaskQueueFactory> task_queue_factory =
+      webrtc::CreateDefaultTaskQueueFactory();
   // TODO(ossu): Why are the payload types of codecs with non-static payload
   // type assignments checked here? It shouldn't really matter.
   testing::NiceMock<webrtc::test::MockAudioDeviceModule> adm;
   rtc::scoped_refptr<webrtc::AudioProcessing> apm =
       webrtc::AudioProcessingBuilder().Create();
   cricket::WebRtcVoiceEngine engine(
-      &adm, webrtc::MockAudioEncoderFactory::CreateUnusedFactory(),
+      task_queue_factory.get(), &adm,
+      webrtc::MockAudioEncoderFactory::CreateUnusedFactory(),
       webrtc::MockAudioDecoderFactory::CreateUnusedFactory(), nullptr, apm);
   engine.Init();
   for (const cricket::AudioCodec& codec : engine.send_codecs()) {
@@ -3590,11 +3606,14 @@
 
 // Tests that VoE supports at least 32 channels
 TEST(WebRtcVoiceEngineTest, Has32Channels) {
+  std::unique_ptr<webrtc::TaskQueueFactory> task_queue_factory =
+      webrtc::CreateDefaultTaskQueueFactory();
   testing::NiceMock<webrtc::test::MockAudioDeviceModule> adm;
   rtc::scoped_refptr<webrtc::AudioProcessing> apm =
       webrtc::AudioProcessingBuilder().Create();
   cricket::WebRtcVoiceEngine engine(
-      &adm, webrtc::MockAudioEncoderFactory::CreateUnusedFactory(),
+      task_queue_factory.get(), &adm,
+      webrtc::MockAudioEncoderFactory::CreateUnusedFactory(),
       webrtc::MockAudioDecoderFactory::CreateUnusedFactory(), nullptr, apm);
   engine.Init();
   webrtc::RtcEventLogNullImpl event_log;
@@ -3622,6 +3641,8 @@
 
 // Test that we set our preferred codecs properly.
 TEST(WebRtcVoiceEngineTest, SetRecvCodecs) {
+  std::unique_ptr<webrtc::TaskQueueFactory> task_queue_factory =
+      webrtc::CreateDefaultTaskQueueFactory();
   // TODO(ossu): I'm not sure of the intent of this test. It's either:
   // - Check that our builtin codecs are usable by Channel.
   // - The codecs provided by the engine is usable by Channel.
@@ -3633,7 +3654,8 @@
   rtc::scoped_refptr<webrtc::AudioProcessing> apm =
       webrtc::AudioProcessingBuilder().Create();
   cricket::WebRtcVoiceEngine engine(
-      &adm, webrtc::MockAudioEncoderFactory::CreateUnusedFactory(),
+      task_queue_factory.get(), &adm,
+      webrtc::MockAudioEncoderFactory::CreateUnusedFactory(),
       webrtc::CreateBuiltinAudioDecoderFactory(), nullptr, apm);
   engine.Init();
   webrtc::RtcEventLogNullImpl event_log;
@@ -3665,6 +3687,8 @@
   specs.push_back(
       webrtc::AudioCodecSpec{{"codec5", 8000, 2}, {8000, 1, 64000}});
 
+  std::unique_ptr<webrtc::TaskQueueFactory> task_queue_factory =
+      webrtc::CreateDefaultTaskQueueFactory();
   rtc::scoped_refptr<webrtc::MockAudioEncoderFactory> unused_encoder_factory =
       webrtc::MockAudioEncoderFactory::CreateUnusedFactory();
   rtc::scoped_refptr<webrtc::MockAudioDecoderFactory> mock_decoder_factory =
@@ -3675,7 +3699,8 @@
 
   rtc::scoped_refptr<webrtc::AudioProcessing> apm =
       webrtc::AudioProcessingBuilder().Create();
-  cricket::WebRtcVoiceEngine engine(&adm, unused_encoder_factory,
+  cricket::WebRtcVoiceEngine engine(task_queue_factory.get(), &adm,
+                                    unused_encoder_factory,
                                     mock_decoder_factory, nullptr, apm);
   engine.Init();
   auto codecs = engine.recv_codecs();