gn: Only copy dbghelp.dll for the default toolchain.

base/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.
 
 # HOW TO WRITE CONDITIONALS IN THIS FILE
 # ======================================
 #
 # In many other places, one would write a conditional that expresses all the
 # cases when a source file is used or unused, and then either add or subtract
 # it from the sources list in that case
@@ skipping 1102 matching lines @@
       "strings/string16.cc",
 
       # Not using sha1_win.cc because it may have caused a
       # regression to page cycler moz.
       "sha1_win.cc",
     ]
 
     # Required for base/stack_trace_win.cc to symbolize correctly.
     data += [ "$root_build_dir/dbghelp.dll" ]
 
-    deps += [
-      ":copy_dbghelp.dll",
-      "//base/trace_event/etw_manifest:chrome_events_win",
-    ]
+    deps += [ "//base/trace_event/etw_manifest:chrome_events_win" ]
+    if (current_toolchain == default_toolchain) {
+      deps += [ ":copy_dbghelp.dll" ]
+    }
 
     if (is_component_build) {
       # Copy the VS runtime DLLs into the isolate so that they don't have to be
       # preinstalled on the target machine. The debug runtimes have a "d" at
       # the end.
       if (is_debug) {
         vcrt_suffix = "d"
       } else {
         vcrt_suffix = ""
       }
@@ skipping 913 matching lines @@
 
   # GYP: //base.gyp:base_java_unittest_support
   android_library("base_java_unittest_support") {
     deps = [
       ":base_java",
     ]
     java_files =
         [ "test/android/java/src/org/chromium/base/ContentUriTestUtils.java" ]
   }
 }