Use RunLoop in audio/ tests

Bug: webrtc:469327588
Change-Id: I6f7a6f3d88184aa38f5a8597fc29acc56a6a6964
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/461346
Reviewed-by: Jakob Ivarsson‎ <jakobi@webrtc.org>
Commit-Queue: Jakob Ivarsson‎ <jakobi@webrtc.org>
Auto-Submit: Evan Shrubsole <eshr@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#47316}

audio/channel_receive_frame_transformer_delegate_unittest.cc

diff --git a/audio/channel_receive_frame_transformer_delegate_unittest.cc b/audio/channel_receive_frame_transformer_delegate_unittest.cc
index 01dbaee..986cddf 100644
--- a/audio/channel_receive_frame_transformer_delegate_unittest.cc
+++ b/audio/channel_receive_frame_transformer_delegate_unittest.cc
@@ -28,6 +28,7 @@
 #include "system_wrappers/include/ntp_time.h"
 #include "test/gmock.h"
 #include "test/gtest.h"
+#include "test/run_loop.h"
 
 namespace webrtc {
 namespace {
@@ -87,7 +88,7 @@
 // transformer, it passes it to the channel using the ReceiveFrameCallback.
 TEST(ChannelReceiveFrameTransformerDelegateTest,
      TransformRunsChannelReceiveCallback) {
-  AutoThread main_thread;
+  test::RunLoop main_thread;
   scoped_refptr<MockFrameTransformer> mock_frame_transformer =
       make_ref_counted<NiceMock<MockFrameTransformer>>();
   MockChannelReceive mock_channel;
@@ -118,7 +119,7 @@
 // transformer, it passes it to the channel using the ReceiveFrameCallback.
 TEST(ChannelReceiveFrameTransformerDelegateTest,
      TransformRunsChannelReceiveCallbackForSenderFrame) {
-  AutoThread main_thread;
+  test::RunLoop main_thread;
   scoped_refptr<MockFrameTransformer> mock_frame_transformer =
       make_ref_counted<NiceMock<MockFrameTransformer>>();
   MockChannelReceive mock_channel;
@@ -153,7 +154,7 @@
 // after resetting the delegate.
 TEST(ChannelReceiveFrameTransformerDelegateTest,
      OnTransformedDoesNotRunChannelReceiveCallbackAfterReset) {
-  AutoThread main_thread;
+  test::RunLoop main_thread;
   scoped_refptr<MockFrameTransformer> mock_frame_transformer =
       make_ref_counted<testing::NiceMock<MockFrameTransformer>>();
   MockChannelReceive mock_channel;
@@ -169,7 +170,7 @@
 
 TEST(ChannelReceiveFrameTransformerDelegateTest,
      ShortCircuitingSkipsTransform) {
-  AutoThread main_thread;
+  test::RunLoop main_thread;
   scoped_refptr<MockFrameTransformer> mock_frame_transformer =
       make_ref_counted<testing::NiceMock<MockFrameTransformer>>();
   MockChannelReceive mock_channel;
@@ -193,7 +194,7 @@
 
 TEST(ChannelReceiveFrameTransformerDelegateTest,
      AudioLevelAndCaptureTimeAbsentWithoutExtension) {
-  AutoThread main_thread;
+  test::RunLoop main_thread;
   scoped_refptr<MockFrameTransformer> mock_frame_transformer =
       make_ref_counted<NiceMock<MockFrameTransformer>>();
   scoped_refptr<ChannelReceiveFrameTransformerDelegate> delegate =
@@ -230,7 +231,7 @@
 
 TEST(ChannelReceiveFrameTransformerDelegateTest,
      AudioLevelPresentWithExtension) {
-  AutoThread main_thread;
+  test::RunLoop main_thread;
   scoped_refptr<MockFrameTransformer> mock_frame_transformer =
       make_ref_counted<NiceMock<MockFrameTransformer>>();
   scoped_refptr<ChannelReceiveFrameTransformerDelegate> delegate =
@@ -268,7 +269,7 @@
 
 TEST(ChannelReceiveFrameTransformerDelegateTest,
      CaptureTimePresentWithExtension) {
-  AutoThread main_thread;
+  test::RunLoop main_thread;
   scoped_refptr<MockFrameTransformer> mock_frame_transformer =
       make_ref_counted<NiceMock<MockFrameTransformer>>();
   scoped_refptr<ChannelReceiveFrameTransformerDelegate> delegate =
@@ -311,7 +312,7 @@
 }
 
 TEST(ChannelReceiveFrameTransformerDelegateTest, SetAudioLevel) {
-  AutoThread main_thread;
+  test::RunLoop main_thread;
   scoped_refptr<MockFrameTransformer> mock_frame_transformer =
       make_ref_counted<NiceMock<MockFrameTransformer>>();
   scoped_refptr<ChannelReceiveFrameTransformerDelegate> delegate =
@@ -346,7 +347,7 @@
 
 TEST(ChannelReceiveFrameTransformerDelegateTest,
      ReceivingSenderFrameWithAudioValueSetsAudioLevelInHeader) {
-  AutoThread main_thread;
+  test::RunLoop main_thread;
   scoped_refptr<MockFrameTransformer> mock_frame_transformer =
       make_ref_counted<NiceMock<MockFrameTransformer>>();
   MockChannelReceive mock_channel;