Cleanup FakeRtcEventLog from thread awareness

To avoid it relying on AsyncInvoker.

Bug: webrtc:12339
Change-Id: I086305a74cc05fc8ed88a651e71a8f707c2c1d5c
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/202252
Reviewed-by: Björn Terelius <terelius@webrtc.org>
Reviewed-by: Per Kjellander <perkj@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#33044}

logging/BUILD.gn

@@ -284,11 +284,9 @@ rtc_library("fake_rtc_event_log") {
   ]
 
   deps = [
-    ":ice_log",
     "../api/rtc_event_log",
     "../rtc_base",
-    "../rtc_base:checks",
-    "../rtc_base:threading",
+    "../rtc_base/synchronization:mutex",
   ]
 }
 

logging/rtc_event_log/fake_rtc_event_log.cc

@@ -10,31 +10,29 @@
 
 #include "logging/rtc_event_log/fake_rtc_event_log.h"
 
-#include "logging/rtc_event_log/events/rtc_event_ice_candidate_pair.h"
-#include "rtc_base/checks.h"
-#include "rtc_base/logging.h"
+#include <map>
+#include <memory>
+
+#include "api/rtc_event_log/rtc_event_log.h"
+#include "rtc_base/synchronization/mutex.h"
 
 namespace webrtc {
 
-FakeRtcEventLog::FakeRtcEventLog(rtc::Thread* thread) : thread_(thread) {
-  RTC_DCHECK(thread_);
-}
-FakeRtcEventLog::~FakeRtcEventLog() = default;
-
 bool FakeRtcEventLog::StartLogging(std::unique_ptr<RtcEventLogOutput> output,
                                    int64_t output_period_ms) {
   return true;
 }
 
-void FakeRtcEventLog::StopLogging() {
-  invoker_.Flush(thread_);
-}
+void FakeRtcEventLog::StopLogging() {}
 
 void FakeRtcEventLog::Log(std::unique_ptr<RtcEvent> event) {
-  RtcEvent::Type rtc_event_type = event->GetType();
-  invoker_.AsyncInvoke<void>(RTC_FROM_HERE, thread_, [this, rtc_event_type] {
-    ++count_[rtc_event_type];
-  });
+  MutexLock lock(&mu_);
+  ++count_[event->GetType()];
+}
+
+int FakeRtcEventLog::GetEventCount(RtcEvent::Type event_type) {
+  MutexLock lock(&mu_);
+  return count_[event_type];
 }
 
 }  // namespace webrtc

logging/rtc_event_log/fake_rtc_event_log.h

@@ -16,25 +16,25 @@
 
 #include "api/rtc_event_log/rtc_event.h"
 #include "api/rtc_event_log/rtc_event_log.h"
-#include "rtc_base/async_invoker.h"
-#include "rtc_base/thread.h"
+#include "rtc_base/synchronization/mutex.h"
+#include "rtc_base/thread_annotations.h"
 
 namespace webrtc {
 
 class FakeRtcEventLog : public RtcEventLog {
  public:
-  explicit FakeRtcEventLog(rtc::Thread* thread);
-  ~FakeRtcEventLog() override;
+  FakeRtcEventLog() = default;
+  ~FakeRtcEventLog() override = default;
+
   bool StartLogging(std::unique_ptr<RtcEventLogOutput> output,
                     int64_t output_period_ms) override;
   void StopLogging() override;
   void Log(std::unique_ptr<RtcEvent> event) override;
-  int GetEventCount(RtcEvent::Type event_type) { return count_[event_type]; }
+  int GetEventCount(RtcEvent::Type event_type);
 
  private:
-  std::map<RtcEvent::Type, int> count_;
-  rtc::Thread* thread_;
-  rtc::AsyncInvoker invoker_;
+  Mutex mu_;
+  std::map<RtcEvent::Type, int> count_ RTC_GUARDED_BY(mu_);
 };
 
 }  // namespace webrtc

logging/rtc_event_log/fake_rtc_event_log_factory.cc

@@ -10,14 +10,16 @@
 
 #include "logging/rtc_event_log/fake_rtc_event_log_factory.h"
 
+#include <memory>
+
 #include "api/rtc_event_log/rtc_event_log.h"
 #include "logging/rtc_event_log/fake_rtc_event_log.h"
 
 namespace webrtc {
 
 std::unique_ptr<RtcEventLog> FakeRtcEventLogFactory::CreateRtcEventLog(
-    RtcEventLog::EncodingType encoding_type) {
-  std::unique_ptr<RtcEventLog> fake_event_log(new FakeRtcEventLog(thread()));
+    RtcEventLog::EncodingType /*encoding_type*/) {
+  auto fake_event_log = std::make_unique<FakeRtcEventLog>();
   last_log_created_ = fake_event_log.get();
   return fake_event_log;
 }

logging/rtc_event_log/fake_rtc_event_log_factory.h

@@ -15,24 +15,21 @@
 
 #include "api/rtc_event_log/rtc_event_log_factory_interface.h"
 #include "logging/rtc_event_log/fake_rtc_event_log.h"
-#include "rtc_base/thread.h"
 
 namespace webrtc {
 
 class FakeRtcEventLogFactory : public RtcEventLogFactoryInterface {
  public:
-  explicit FakeRtcEventLogFactory(rtc::Thread* thread) : thread_(thread) {}
-  ~FakeRtcEventLogFactory() override {}
+  FakeRtcEventLogFactory() = default;
+  ~FakeRtcEventLogFactory() override = default;
 
   std::unique_ptr<RtcEventLog> CreateRtcEventLog(
       RtcEventLog::EncodingType encoding_type) override;
 
-  webrtc::RtcEventLog* last_log_created() { return last_log_created_; }
-  rtc::Thread* thread() { return thread_; }
+  webrtc::FakeRtcEventLog* last_log_created() { return last_log_created_; }
 
  private:
-  webrtc::RtcEventLog* last_log_created_;
-  rtc::Thread* thread_;
+  webrtc::FakeRtcEventLog* last_log_created_;
 };
 
 }  // namespace webrtc

pc/peer_connection_integrationtest.cc

@@ -1356,11 +1356,9 @@ class PeerConnectionIntegrationBaseTest : public ::testing::Test {
       const PeerConnectionFactory::Options* options,
       const RTCConfiguration* config,
       webrtc::PeerConnectionDependencies dependencies) {
-    std::unique_ptr<webrtc::FakeRtcEventLogFactory> event_log_factory(
-        new webrtc::FakeRtcEventLogFactory(rtc::Thread::Current()));
-    return CreatePeerConnectionWrapper(debug_name, options, config,
-                                       std::move(dependencies),
-                                       std::move(event_log_factory),
+    return CreatePeerConnectionWrapper(
+        debug_name, options, config, std::move(dependencies),
+        std::make_unique<webrtc::FakeRtcEventLogFactory>(),
         /*reset_encoder_factory=*/false,
         /*reset_decoder_factory=*/false);
   }
@@ -5238,11 +5236,9 @@ TEST_P(PeerConnectionIntegrationTest,
   ASSERT_NE(nullptr, caller()->event_log_factory());
   ASSERT_NE(nullptr, callee()->event_log_factory());
   webrtc::FakeRtcEventLog* caller_event_log =
-      static_cast<webrtc::FakeRtcEventLog*>(
-          caller()->event_log_factory()->last_log_created());
+      caller()->event_log_factory()->last_log_created();
   webrtc::FakeRtcEventLog* callee_event_log =
-      static_cast<webrtc::FakeRtcEventLog*>(
-          callee()->event_log_factory()->last_log_created());
+      callee()->event_log_factory()->last_log_created();
   ASSERT_NE(nullptr, caller_event_log);
   ASSERT_NE(nullptr, callee_event_log);
   int caller_ice_config_count = caller_event_log->GetEventCount(