Build fixes for fnl/musl

base/trace_event/BUILD.gn

 # Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 source_set("trace_event") {
   sources = [
     "java_heap_dump_provider_android.cc",
     "java_heap_dump_provider_android.h",
     "memory_allocator_dump.cc",
     "memory_allocator_dump.h",
@@ skipping 38 matching lines @@
     "winheap_dump_provider_win.h",
   ]
 
   if (is_nacl) {
     sources -= [
       "process_memory_totals_dump_provider.cc",
       "trace_event_system_stats_monitor.cc",
     ]
   }
 
-  if (is_linux || is_android) {
+  if ((is_linux || is_android) && !is_fnl) {
     sources += [
       "malloc_dump_provider.cc",
       "malloc_dump_provider.h",
     ]
   }
 
   configs += [ "//base:base_implementation" ]
 
   deps = [
     "//base/debug",
@@ skipping 34 matching lines @@
     "trace_event_win_unittest.cc",
     "winheap_dump_provider_win_unittest.cc",
   ]
 
   deps = [
     "//base/test:test_support",
     "//testing/gmock",
     "//testing/gtest",
   ]
 }