Allow IO thread usage in WebRTC browsertests

chrome/browser/media/webrtc/webrtc_internals_perf_browsertest.cc

Index: chrome/browser/media/webrtc/webrtc_internals_perf_browsertest.cc
diff --git a/chrome/browser/media/webrtc/webrtc_internals_perf_browsertest.cc b/chrome/browser/media/webrtc/webrtc_internals_perf_browsertest.cc
index beb8f6b5285e64f09c23cb045bd5797a7f4fab65..5ec3fd5950c12a11e27a6a07db0bbe55edac6c54 100644
--- a/chrome/browser/media/webrtc/webrtc_internals_perf_browsertest.cc
+++ b/chrome/browser/media/webrtc/webrtc_internals_perf_browsertest.cc
@@ -10,6 +10,7 @@
 #include "base/macros.h"
 #include "base/strings/string_split.h"
 #include "base/test/test_timeouts.h"
+#include "base/threading/thread_restrictions.h"
 #include "base/time/time.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/media/webrtc/webrtc_browsertest_base.h"
@@ -226,12 +227,14 @@ class WebRtcInternalsPerfBrowserTest : public WebRtcTestBase {
 IN_PROC_BROWSER_TEST_F(
     WebRtcInternalsPerfBrowserTest,
     MANUAL_RunsAudioVideoCall60SecsAndLogsInternalMetricsVp8) {
+  base::ThreadRestrictions::ScopedAllowIO allow_io;
   RunsAudioVideoCall60SecsAndLogsInternalMetrics("VP8");
 }
 
 IN_PROC_BROWSER_TEST_F(
     WebRtcInternalsPerfBrowserTest,
     MANUAL_RunsAudioVideoCall60SecsAndLogsInternalMetricsVp9) {
+  base::ThreadRestrictions::ScopedAllowIO allow_io;
   RunsAudioVideoCall60SecsAndLogsInternalMetrics("VP9");
 }
 
@@ -248,6 +251,7 @@ IN_PROC_BROWSER_TEST_F(
 IN_PROC_BROWSER_TEST_F(
     WebRtcInternalsPerfBrowserTest,
     MAYBE_MANUAL_RunsAudioVideoCall60SecsAndLogsInternalMetricsH264) {
+  base::ThreadRestrictions::ScopedAllowIO allow_io;
   // Only run test if run-time feature corresponding to |rtc_use_h264| is on.
   if (!base::FeatureList::IsEnabled(content::kWebRtcH264WithOpenH264FFmpeg)) {
     LOG(WARNING) << "Run-time feature WebRTC-H264WithOpenH264FFmpeg disabled. "
@@ -264,11 +268,13 @@ IN_PROC_BROWSER_TEST_F(
 IN_PROC_BROWSER_TEST_F(
     WebRtcInternalsPerfBrowserTest,
     MANUAL_RunsOneWayCall60SecsAndLogsInternalMetricsDefault) {
+  base::ThreadRestrictions::ScopedAllowIO allow_io;
   RunsOneWayCall60SecsAndLogsInternalMetrics("", false);
 }
 
 IN_PROC_BROWSER_TEST_F(
     WebRtcInternalsPerfBrowserTest,
     MANUAL_RunsOneWayCall60SecsAndLogsInternalMetricsWithOpusDtx) {
+  base::ThreadRestrictions::ScopedAllowIO allow_io;
   RunsOneWayCall60SecsAndLogsInternalMetrics("", true);
 }