WebRtcStatsPerfBrowserTest added, a perf test using the new getStats

chrome/browser/media/webrtc/webrtc_internals_perf_browsertest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <memory>
 
 #include "base/command_line.h"
 #include "base/files/file_util.h"
 #include "base/json/json_reader.h"
 #include "base/macros.h"
@@ skipping 24 matching lines @@
 std::string MakePerfTestLabel(std::string base, bool opus_dtx) {
   if (opus_dtx) {
     return base + "_with_opus_dtx";
   }
   return base;
 }
 
 // Performance browsertest for WebRTC. This test is manual since it takes long
 // to execute and requires the reference files provided by the webrtc.DEPS
 // solution (which is only available on WebRTC internal bots).
-class WebRtcPerfBrowserTest : public WebRtcTestBase {
+// Gets its metrics from "chrome://webrtc-internals".
+class WebRtcInternalsPerfBrowserTest : public WebRtcTestBase {
  public:
   void SetUpInProcessBrowserTestFixture() override {
     DetectErrorsInJavaScript();  // Look for errors in our rather complex js.
   }
 
   void SetUpCommandLine(base::CommandLine* command_line) override {
     // Ensure the infobar is enabled, since we expect that in this test.
     EXPECT_FALSE(command_line->HasSwitch(switches::kUseFakeUIForMediaStream));
 
     // Play a suitable, somewhat realistic video file.
@@ skipping 160 matching lines @@
         *second_pc_dict, MakePerfTestLabel("_recvonly", opus_dtx), video_codec);
 
     HangUp(left_tab);
     HangUp(right_tab);
   }
 };
 
 // This is manual for its long execution time.
 
 IN_PROC_BROWSER_TEST_F(
-    WebRtcPerfBrowserTest,
+    WebRtcInternalsPerfBrowserTest,
     MANUAL_RunsAudioVideoCall60SecsAndLogsInternalMetricsVp8) {
   RunsAudioVideoCall60SecsAndLogsInternalMetrics("VP8");
 }
 
 IN_PROC_BROWSER_TEST_F(
-    WebRtcPerfBrowserTest,
+    WebRtcInternalsPerfBrowserTest,
     MANUAL_RunsAudioVideoCall60SecsAndLogsInternalMetricsVp9) {
   RunsAudioVideoCall60SecsAndLogsInternalMetrics("VP9");
 }
 
 #if BUILDFLAG(RTC_USE_H264)
 
 IN_PROC_BROWSER_TEST_F(
-    WebRtcPerfBrowserTest,
+    WebRtcInternalsPerfBrowserTest,
     MANUAL_RunsAudioVideoCall60SecsAndLogsInternalMetricsH264) {
   // 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. "
-        "Skipping WebRtcPerfBrowserTest.MANUAL_RunsAudioVideoCall60SecsAndLogs"
-        "InternalMetricsH264 (test \"OK\")";
+        "Skipping WebRtcInternalsPerfBrowserTest."
+        "MANUAL_RunsAudioVideoCall60SecsAndLogsInternalMetricsH264 (test "
+        "\"OK\")";
     return;
   }
   RunsAudioVideoCall60SecsAndLogsInternalMetrics("H264");
 }
 
 #endif  // BUILDFLAG(RTC_USE_H264)
 
 IN_PROC_BROWSER_TEST_F(
-    WebRtcPerfBrowserTest,
+    WebRtcInternalsPerfBrowserTest,
     MANUAL_RunsOneWayCall60SecsAndLogsInternalMetricsDefault) {
   RunsOneWayCall60SecsAndLogsInternalMetrics("", false);
 }
 
 IN_PROC_BROWSER_TEST_F(
-    WebRtcPerfBrowserTest,
+    WebRtcInternalsPerfBrowserTest,
     MANUAL_RunsOneWayCall60SecsAndLogsInternalMetricsWithOpusDtx) {
   RunsOneWayCall60SecsAndLogsInternalMetrics("", true);
 }