Make it possible to launch chrome --mash with ozone_platform={wayland|x11}, chromeos=0

chrome/browser/BUILD.gn

Index: chrome/browser/BUILD.gn
diff --git a/chrome/browser/BUILD.gn b/chrome/browser/BUILD.gn
index 77ca2ee3362e9c7c7850c6f8ca50286237b26ca1..f3e9fcf92be4d97c63d523736eb846051873a20d 100644
--- a/chrome/browser/BUILD.gn
+++ b/chrome/browser/BUILD.gn
@@ -3551,6 +3551,13 @@ split_static_library("browser") {
       defines += [ "USE_LIBSECRET" ]
       deps += [ "//third_party/libsecret" ]
     }
+
+    if (use_ozone) {
+      sources += [
+        "fullscreen_ozone.cc",
+        "media/webrtc/window_icon_util_ozone.cc",
+      ]
+    }
   }
 
   if (android_java_ui) {