diff -up qtwebengine-everywhere-src-5.15.8/src/3rdparty/chromium/third_party/angle/src/common/utilities.cpp.nullptr qtwebengine-everywhere-src-5.15.8/src/3rdparty/chromium/third_party/angle/src/common/utilities.cpp
--- qtwebengine-everywhere-src-5.15.8/src/3rdparty/chromium/third_party/angle/src/common/utilities.cpp.nullptr	2021-12-15 10:09:27.000000000 -0600
+++ qtwebengine-everywhere-src-5.15.8/src/3rdparty/chromium/third_party/angle/src/common/utilities.cpp	2022-01-19 08:52:02.659577615 -0600
@@ -254,7 +254,7 @@ std::string GetGLSLTypeString(GLenum typ
             return "mat4";
         default:
             UNREACHABLE();
-            return nullptr;
+            return "";
     }
 }