Use third_party/custom_tabs_client as the src for customtabs library

chrome/chrome.gyp

 # Copyright (c) 2012 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.
 {
   'variables': {
     'chromium_code': 1,
 
     # Define the common dependencies that contain all the actual
     # Chromium functionality.  This list gets pulled in below by
     # the link of the actual chrome (or chromium) executable on
@@ skipping 567 matching lines @@
             'connectivity_check_result_java',
             'document_tab_model_info_proto_java',
             'profile_account_management_metrics_java',
             'content_setting_java',
             'content_settings_type_java',
             'page_info_connection_type_java',
             'resource_id_java',
             'tab_load_status_java',
             'shortcut_source_java',
             '../base/base.gyp:base',
-            '../chrome/android/chrome_apk.gyp:custom_tabs_service_aidl',
             '../components/components.gyp:app_restrictions_resources',
             '../components/components.gyp:bookmarks_java',
             '../components/components.gyp:dom_distiller_core_java',
             '../components/components.gyp:enhanced_bookmarks_java_enums_srcjar',
             '../components/components.gyp:gcm_driver_java',
             '../components/components.gyp:invalidation_java',
             '../components/components.gyp:navigation_interception_java',
             '../components/components.gyp:offline_pages_enums_java',
             '../components/components.gyp:policy_java',
             '../components/components.gyp:precache_java',
@@ skipping 10 matching lines @@
             '../third_party/android_media/android_media.gyp:android_media_java',
             '../third_party/android_protobuf/android_protobuf.gyp:protobuf_nano_javalib',
             '../third_party/android_swipe_refresh/android_swipe_refresh.gyp:android_swipe_refresh_java',
             '../third_party/android_tools/android_tools.gyp:android_support_design_javalib',
             '../third_party/android_tools/android_tools.gyp:android_support_v7_appcompat_javalib',
             '../third_party/android_tools/android_tools.gyp:android_support_v7_mediarouter_javalib',
             '../third_party/android_tools/android_tools.gyp:android_support_v7_recyclerview_javalib',
             '../third_party/android_tools/android_tools.gyp:android_support_v13_javalib',
             '../third_party/android_tools/android_tools.gyp:google_play_services_javalib',
             '../third_party/cacheinvalidation/cacheinvalidation.gyp:cacheinvalidation_javalib',
+            '../third_party/custom_tabs_client/custom_tabs_client.gyp:custom_tabs_support_lib',
             '../third_party/jsr-305/jsr-305.gyp:jsr_305_javalib',
             '../ui/android/ui_android.gyp:ui_java',
           ],
           'variables': {
             'variables': {
               'android_branding_res_dirs%': ['<(java_in_dir)/res_chromium'],
             },
             'java_in_dir': '../chrome/android/java',
             'has_java_resources': 1,
             'R_package': 'org.chromium.chrome',
@@ skipping 204 matching lines @@
                   '<(DEPTH)/third_party/kasko'
                 ],
               },
             },
           },
         },
       ],
     }],
   ],  # 'conditions'
 }