Make sure PDB files are in runtime_deps for GN builds.

components/nacl/broker/BUILD.gn

 # Copyright 2016 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/features.gni")
+import("//build/config/compiler/compiler.gni")
 
 # This file builds nacl64.exe, which is a 64-bit x86 Windows executable
 # used only in the 32-bit x86 Windows build.  The :broker code runs both
 # in nacl64.exe and in the 32-bit chrome executable, to launch
 # nacl64.exe and communicate with it.
 
 assert(enable_nacl)
 assert(is_win)
 assert(target_cpu == "x86")
 
@@ skipping 44 matching lines @@
     if (is_clang) {
       x64_toolchain = "//build/toolchain/win:clang_nacl_win64"
     } else {
       x64_toolchain = "//build/toolchain/win:nacl_win64"
     }
     nacl64_label = ":nacl64($x64_toolchain)"
     nacl64_out_dir = get_label_info(nacl64_label, "root_out_dir")
     sources = [
       "$nacl64_out_dir/nacl64.exe",
     ]
+    if (symbol_level != 0) {
+      sources += [ "$nacl64_out_dir/nacl64.exe.pdb" ]
+    }
     outputs = [
       "$root_out_dir/{{source_file_part}}",
     ]
     deps = [
       nacl64_label,
     ]
   }
 } else if (current_cpu == "x64") {
   # In the x64 toolchain context, build nacl64.exe for real.
   executable("nacl64") {
@@ skipping 75 matching lines @@
       "//chrome/installer/util:with_no_strings",
       "//components/browser_watcher:browser_watcher_client",
       "//components/flags_ui:switches",
       "//components/policy",
       "//content/public/common:static_switches",
       "//ipc",
       "//third_party/kasko",
     ]
   }
 }