Restore GTM Foundation/GTMIBArray.m to the build

third_party/google_toolbox_for_mac/BUILD.gn

 # Copyright 2014 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.
 
 config("google_toolbox_for_mac_public_config") {
   include_dirs = [
     ".",
     "src",
     "src/AppKit",
     "src/DebugUtils",
@@ skipping 11 matching lines @@
   configs -= [ "//build/config/compiler:chromium_code" ]
   configs += [ "//build/config/compiler:no_chromium_code" ]
   public_configs = [ ":google_toolbox_for_mac_public_config" ]
 
   if (!is_ios) {
     sources += [
       "src/AppKit/GTMCarbonEvent.h",
       "src/AppKit/GTMCarbonEvent.m",
       "src/AppKit/GTMFadeTruncatingTextFieldCell.h",
       "src/AppKit/GTMFadeTruncatingTextFieldCell.m",
+      "src/AppKit/GTMIBArray.h",
+      "src/AppKit/GTMIBArray.m",
       "src/AppKit/GTMKeyValueAnimation.h",
       "src/AppKit/GTMKeyValueAnimation.m",
       "src/AppKit/GTMNSAnimation+Duration.h",
       "src/AppKit/GTMNSAnimation+Duration.m",
       "src/AppKit/GTMNSBezierPath+CGPath.h",
       "src/AppKit/GTMNSBezierPath+CGPath.m",
       "src/AppKit/GTMNSBezierPath+RoundRect.h",
       "src/AppKit/GTMNSBezierPath+RoundRect.m",
       "src/AppKit/GTMNSColor+Luminance.h",
       "src/AppKit/GTMNSColor+Luminance.m",
@@ skipping 44 matching lines @@
     # GTM is third-party code, so we don't want to add _EXPORT
     # annotations to it, so build it without -fvisibility=hidden
     # (else the interface class symbols will be hidden in a 64bit
     # build). Only do this in a component build, so that the shipping
     # chrome binary doesn't end up with unnecessarily exported
     # symbols.
     configs -= [ "//build/config/gcc:symbol_visibility_hidden" ]
     configs += [ "//build/config/gcc:symbol_visibility_default" ]
   }
 }