Add GCAPI to the GN build.

chrome/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.
 
 import("//build/config/chrome_build.gni")
 import("//build/config/features.gni")
 import("//build/config/locales.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 import("//build/config/ui.gni")
 import("//build/config/win/manifest.gni")
@@ skipping 850 matching lines @@
 
   if (enable_hidpi) {
     chrome_repack_material_percent("repack_chrome_material_200_percent") {
       percent = "200"
     }
   }
 }
 
 # GYP version: chrome/chrome_resources.gyp:chrome_strings
 group("strings") {
-  deps = [
+  public_deps = [
     "//chrome/app:chromium_strings",
     "//chrome/app:generated_resources",
     "//chrome/app:google_chrome_strings",
     "//chrome/app:settings_strings",
     "//chrome/app/resources:locale_settings",
   ]
 }
 
 if (is_android) {
   # GYP: //chrome/chrome.gyp:content_setting_java
@@ skipping 133 matching lines @@
       "//chrome/app/theme/$branding_path_component/product_logo_48.png",
       "//chrome/tools/build/linux/chrome-wrapper",
       "//third_party/xdg-utils/scripts/xdg-mime",
       "//third_party/xdg-utils/scripts/xdg-settings",
     ]
     outputs = [
       "$root_out_dir/{{source_file_part}}",
     ]
   }
 }