Port cronet_package GYP target to GN

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.
 
 # This is the root build file for GN. GN will start processing by loading this
 # file, and recursively load all dependencies until all dependencies are either
 # resolved or known not to exist (which will cause the build to fail). So if
 # you add a new build file, there must be some path of dependencies from this
 # file to your new one or GN won't know about it.
 
@@ skipping 281 matching lines @@
       "//tools/cygprofile:cygprofile_unittests",
       "//tools/imagediff($host_toolchain)",
     ]
     deps -= [
       "//net:net_perftests",
       "//url:url_unittests",
     ]
 
     if (!is_component_build) {
       deps += [
+        "//components/cronet/android:cronet_package",
         "//components/cronet/android:cronet_sample_apk",
         "//components/cronet/android:cronet_sample_test_apk",
         "//components/cronet/android:cronet_test_apk",
         "//components/cronet/android:cronet_test_instrumentation_apk",
         "//components/cronet/android:cronet_unittests",
       ]
     }
 
     if (!is_chromecast) {
       deps += [
@@ skipping 545 matching lines @@
       ]
 
       if (target_cpu == "x86") {
         deps += [ "//chrome/tools/crash_service:crash_service_win64" ]
       }
     } else {
       deps += [ "//breakpad:minidump_stackwalk($host_toolchain)" ]
     }
   }
 }