Cleanup: remove prefix chrome_ of chrome/browser/media/chrome* files

chrome/test/BUILD.gn

Index: chrome/test/BUILD.gn
diff --git a/chrome/test/BUILD.gn b/chrome/test/BUILD.gn
index e8e59bc6701b97b2f1822d999da226b578891a2b..679b321f9d1d0a616dcc2c32e38212dfb8f23dc2 100644
--- a/chrome/test/BUILD.gn
+++ b/chrome/test/BUILD.gn
@@ -1132,15 +1132,15 @@ if (!is_android) {
         "../browser/extensions/api/webrtc_audio_private/webrtc_audio_private_browsertest.cc",
         "../browser/extensions/api/webrtc_logging_private/webrtc_event_log_apitest.cc",
         "../browser/extensions/api/webrtc_logging_private/webrtc_logging_private_apitest.cc",
-        "../browser/media/chrome_webrtc_apprtc_browsertest.cc",
-        "../browser/media/chrome_webrtc_audio_quality_browsertest.cc",
-        "../browser/media/chrome_webrtc_browsertest.cc",
-        "../browser/media/chrome_webrtc_disable_encryption_flag_browsertest.cc",
-        "../browser/media/chrome_webrtc_getmediadevices_browsertest.cc",
-        "../browser/media/chrome_webrtc_perf_browsertest.cc",
-        "../browser/media/chrome_webrtc_simulcast_browsertest.cc",
-        "../browser/media/chrome_webrtc_video_quality_browsertest.cc",
-        "../browser/media/chrome_webrtc_webcam_browsertest.cc",
+        "../browser/media/webrtc_apprtc_browsertest.cc",
+        "../browser/media/webrtc_audio_quality_browsertest.cc",
+        "../browser/media/webrtc_browsertest.cc",
+        "../browser/media/webrtc_disable_encryption_flag_browsertest.cc",
+        "../browser/media/webrtc_getmediadevices_browsertest.cc",
+        "../browser/media/webrtc_perf_browsertest.cc",
+        "../browser/media/webrtc_simulcast_browsertest.cc",
+        "../browser/media/webrtc_video_quality_browsertest.cc",
+        "../browser/media/webrtc_webcam_browsertest.cc",
       ]
     }
     if (enable_media_router) {