[Fuchsia] Routes timeline events to Fuchsia's tracing app

runtime/BUILD.gn

 # Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 import("runtime_args.gni")
 
 config("dart_public_config") {
   include_dirs = [ "." ]
 }
 
@@ skipping 88 matching lines @@
   }
 
   include_dirs = []
   if (dart_use_tcmalloc) {
     defines += [ "DART_USE_TCMALLOC" ]
     include_dirs += [ "../third_party/tcmalloc/gperftools/src" ]
   }
 
   if (is_fuchsia) {
     defines += [ "DART_USE_JEMALLOC" ]
-    include_dirs += [ "//magenta/third_party/ulib/jemalloc/include" ]
+    include_dirs += [
+      "//magenta/system/ulib/mx/include",
+      "//magenta/third_party/ulib/jemalloc/include",
+    ]
   }
 
   if (!is_win) {
     cflags = [
       "-Werror",
       "-Wall",
       "-Wextra",  # Also known as -W.
       "-Wno-unused-parameter",
       "-Wnon-virtual-dtor",
       "-Wvla",
@@ skipping 129 matching lines @@
 
   script = "../tools/make_version.py"
   args = [
     "--quiet",
     "--output",
     rebase_path(output, root_build_dir),
     "--input",
     rebase_path("vm/version_in.cc", root_build_dir),
   ]
 }