GN configs for ipc fuzzer.

tools/ipc_fuzzer/message_dump/BUILD.gn

Index: tools/ipc_fuzzer/message_dump/BUILD.gn
diff --git a/components/mus/gpu/BUILD.gn b/tools/ipc_fuzzer/message_dump/BUILD.gn
similarity index 52%
copy from components/mus/gpu/BUILD.gn
copy to tools/ipc_fuzzer/message_dump/BUILD.gn
index 0bcf1fcc813ef46a8197aa918c988755a9eac1d6..756652cbf9bb093e40d757cbd53d543c047ad173 100644
--- a/components/mus/gpu/BUILD.gn
+++ b/tools/ipc_fuzzer/message_dump/BUILD.gn
@@ -2,16 +2,12 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-source_set("gpu") {
-  output_name = "mus_gpu"
-
-  sources = [
-    "gpu_service_mus.cc",
-    "gpu_service_mus.h",
-  ]
-
+loadable_module("ipc_message_dump") {
+  configs += [ "//tools/ipc_fuzzer:ipc_fuzzer_tool_config" ]
   deps = [
-    "//gpu/ipc/common",
-    "//gpu/ipc/service",
+    "//tools/ipc_fuzzer/message_lib:ipc_message_lib",
+  ]
+  sources = [
+    "message_dump.cc",
   ]
 }