Expose custom tab client gyp target in chromium

build/all.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': {
     # A hook that can be overridden in other repositories to add additional
     # compilation targets to 'All'.
     'app_targets%': [],
     # For Android-specific targets.
@@ skipping 869 matching lines @@
                 # Unit test bundles packaged as an apk.
                 '../android_webview/android_webview.gyp:android_webview_test_apk',
                 '../android_webview/android_webview.gyp:android_webview_unittests_apk',
                 '../chrome/android/chrome_apk.gyp:chrome_public_test_apk',
                 '../chrome/chrome.gyp:chrome_junit_tests',
                 '../chrome/chrome.gyp:chrome_shell_test_apk',
                 '../chrome/chrome.gyp:chrome_sync_shell_test_apk',
                 '../chrome/chrome.gyp:chrome_shell_uiautomator_tests',
                 '../chrome/chrome.gyp:chromedriver_webview_shell_apk',
                 '../chrome/chrome.gyp:unit_tests_apk',
+                '../third_party/custom_tabs_client/src/custom_tabs_client.gyp:custom_tabs_client_example_apk',
               ],
             }],
           ],
         },
         {
           # WebRTC Chromium tests to run on Android.
           'target_name': 'android_builder_chromium_webrtc',
           'type': 'none',
           'dependencies': [
             '../build/android/pylib/device/commands/commands.gyp:chromium_commands',
@@ skipping 502 matching lines @@
           'dependencies': [
             '../ui/views/examples/examples.gyp:views_examples_with_content_exe',
             '../ui/views/views.gyp:views',
             '../ui/views/views.gyp:views_unittests',
           ],
         },  # target_name: macviews_builder
       ],  # targets
     }],  # os=='mac' and toolkit_views==1
   ],  # conditions
 }