Revert of Enable H.264 video WebRTC behind run-time flag and add WebRtcBrowserTest for H.264

chrome/browser/media/chrome_webrtc_browsertest.cc

Index: chrome/browser/media/chrome_webrtc_browsertest.cc
diff --git a/chrome/browser/media/chrome_webrtc_browsertest.cc b/chrome/browser/media/chrome_webrtc_browsertest.cc
index 9fb001ed2b337dd50463d32a8ba75eadb98e5eff..2e0b0f8aa904672e14cade38acd467e1743b5215 100644
--- a/chrome/browser/media/chrome_webrtc_browsertest.cc
+++ b/chrome/browser/media/chrome_webrtc_browsertest.cc
@@ -13,9 +13,7 @@
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/ui_test_utils.h"
-#include "content/public/common/common_features.h"
 #include "content/public/common/content_switches.h"
-#include "content/public/common/feature_h264_with_openh264_ffmpeg.h"
 #include "content/public/test/browser_test_utils.h"
 #include "media/base/media_switches.h"
 #include "net/test/embedded_test_server/embedded_test_server.h"
@@ -82,22 +80,6 @@
   RunsAudioVideoWebRTCCallInTwoTabs("VP9");
 }
 
-#if BUILDFLAG(RTC_USE_H264)
-
-IN_PROC_BROWSER_TEST_F(WebRtcBrowserTest,
-                       RunsAudioVideoWebRTCCallInTwoTabsH264) {
-  // 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 WebRtcH264WithOpenH264FFmpeg disabled. "
-        "Skipping WebRtcBrowserTest.RunsAudioVideoWebRTCCallInTwoTabsH264 "
-        "(test \"OK\")";
-    return;
-  }
-  RunsAudioVideoWebRTCCallInTwoTabs("H264");
-}
-
-#endif  // BUILDFLAG(RTC_USE_H264)
-
 IN_PROC_BROWSER_TEST_F(WebRtcBrowserTest, TestWebAudioMediaStream) {
   // This tests against crash regressions for the WebAudio-MediaStream
   // integration.