Do not use lld to link NaCl binaries.

build/config/compiler/BUILD.gn

 # Copyright (c) 2013 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.
 
 import("//build/config/android/config.gni")
 import("//build/config/chrome_build.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/nacl/config.gni")
 import("//build/toolchain/cc_wrapper.gni")
 import("//build/toolchain/toolchain.gni")
@@ skipping 275 matching lines @@
       "-Wl,-z,now",
       "-Wl,-z,relro",
     ]
     if (!using_sanitizer && !use_cfi_diag) {
       ldflags += [ "-Wl,-z,defs" ]
     }
   }
 
   # Linux-specific compiler flags setup.
   # ------------------------------------
-  if (is_posix && use_lld) {
+  if (is_posix && use_lld && !is_nacl) {
     ldflags += [ "-fuse-ld=lld" ]
   } else if (use_gold) {
     ldflags += [
       "-B$gold_path",
 
       # Newer gccs and clangs support -fuse-ld, use the flag to force gold
       # selection.
       # gcc -- http://gcc.gnu.org/onlinedocs/gcc-4.8.0/gcc/Optimize-Options.html
       "-fuse-ld=gold",
 
@@ skipping 17 matching lines @@
     #  ldflags += [
     #    "-Wl,--detect-odr-violations",
     #  ]
     #}
   } else if (linux_use_bundled_binutils) {
     # Gold is the default linker for the bundled binutils so we explicitly
     # enable the bfd linker when use_gold is not set.
     ldflags += [ "-fuse-ld=bfd" ]
   }
 
-  if (is_posix && (use_gold || use_lld) && !using_sanitizer &&
+  if (is_posix && (use_gold || (use_lld && !is_nacl)) && !using_sanitizer &&
       !(is_android && use_order_profiling)) {
     ldflags += [ "-Wl,--icf=all" ]
   }
 
   if (linux_use_bundled_binutils) {
     cflags += [ "-B$binutils_path" ]
   }
 
   # Clang-specific compiler flags setup.
   # ------------------------------------
@@ skipping 1105 matching lines @@
 
 if (is_ios || is_mac) {
   # On Mac and iOS, this enables support for ARC (automatic ref-counting).
   # See http://clang.llvm.org/docs/AutomaticReferenceCounting.html.
   config("enable_arc") {
     common_flags = [ "-fobjc-arc" ]
     cflags_objc = common_flags
     cflags_objcc = common_flags
   }
 }