--- a/src/3rdparty/chromium/third_party/blink/renderer/build/scripts/gperf.py
+++ b/src/3rdparty/chromium/third_party/blink/renderer/build/scripts/gperf.py
@@ -35,11 +35,6 @@ def generate_gperf(gperf_path, gperf_inp
         # it from gperf's output.
         # https://savannah.gnu.org/bugs/index.php?53028
         gperf_output = re.sub(r'\bregister ', '', gperf_output)
-        # -Wimplicit-fallthrough needs an explicit fallthrough statement,
-        # so replace gperf's /*FALLTHROUGH*/ comment with the statement.
-        # https://savannah.gnu.org/bugs/index.php?53029
-        gperf_output = gperf_output.replace('/*FALLTHROUGH*/',
-                                            '  [[fallthrough]];')
         # -Wpointer-to-int-cast warns about casting pointers to smaller ints
         # Replace {(int)(long)&(foo), bar} with
         # {static_cast<int>(reinterpret_cast<uintptr_t>(&(foo)), bar}