(Do not land) Very hacky patch for using -fprofile-functions in the Win-Clang build

build/config/BUILDCONFIG.gn

Index: build/config/BUILDCONFIG.gn
diff --git a/build/config/BUILDCONFIG.gn b/build/config/BUILDCONFIG.gn
index de3f35f124aadd66ea21c3870651f7962f98f2cb..df1122c1783e9cbaf23c73d35213a6f578e992c2 100644
--- a/build/config/BUILDCONFIG.gn
+++ b/build/config/BUILDCONFIG.gn
@@ -150,6 +150,9 @@ declare_args() {
   # every toolchain can pass through the "global" value via toolchain_args().
   host_toolchain = ""
 
+  # XXX: This is probably not the right place.
+  use_order_profiling = false
+
   # DON'T ADD MORE FLAGS HERE. Read the comment above.
 }
 
@@ -548,6 +551,10 @@ if (is_android) {
   default_compiler_configs +=
       [ "//build/config/android:default_cygprofile_instrumentation" ]
 }
+if (is_win) {
+  default_compiler_configs +=
+      [ "//build/config/win:default_cygprofile_instrumentation" ]
+}
 
 if (is_clang && !is_nacl) {
   default_compiler_configs += [