Add a new driver bug workaround SANDBOX_START_EARLY

gpu/config/gpu_driver_bug_list_json.cc

Index: gpu/config/gpu_driver_bug_list_json.cc
diff --git a/gpu/config/gpu_driver_bug_list_json.cc b/gpu/config/gpu_driver_bug_list_json.cc
index aa3ae04d72a1b746a139fda3a196804f7d4b8f00..025905ff82147f34d5b0cb3901468e9834d7fe5a 100644
--- a/gpu/config/gpu_driver_bug_list_json.cc
+++ b/gpu/config/gpu_driver_bug_list_json.cc
@@ -19,7 +19,7 @@ const char kGpuDriverBugListJson[] = LONG_STRING_CONST(
 {
   "name": "gpu driver bug list",
   // Please update the version number whenever you change this file.
-  "version": "8.63",
+  "version": "8.64",
   "entries": [
     {
       "id": 1,
@@ -1968,6 +1968,19 @@ LONG_STRING_CONST(
       "features": [
         "disable_discard_framebuffer"
       ]
+    },
+    {
+      "id": 163,
+      "description": "The llvmpipe software driver from Mesa uses threads",
+      "cr_bugs": [264818],
+      "os": {
+        "type": "linux"
+      },
+      "driver_vendor": "Mesa",
+      "gl_renderer": ".*Gallium.*llvmpipe.*",
+      "features": [
+        "sandbox_start_early"
+      ]
     }
   ]
 }