[Cronet] Move NetworkChangeNotifier initialization off UI thread

components/cronet/android/BUILD.gn

 # Copyright 2015 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/buildflag_header.gni")
 import("//build/config/android/config.gni")
 import("//build/config/android/rules.gni")
 import("//build/util/process_version.gni")
 import("//build/util/version.gni")
 import("//testing/test.gni")
 import("//third_party/netty4/netty4.gni")
 import("//third_party/protobuf/proto_library.gni")
 import("//url/features.gni")
 
 assert(!is_component_build, "Cronet requires static library build.")
 
 declare_args() {
   cronet_enable_data_reduction_proxy_support = false
 }
 
 generate_jni("cronet_jni_headers") {
   sources = [
     "java/src/org/chromium/net/impl/CronetBidirectionalStream.java",
     "java/src/org/chromium/net/impl/CronetLibraryLoader.java",
     "java/src/org/chromium/net/impl/CronetUploadDataStream.java",
     "java/src/org/chromium/net/impl/CronetUrlRequest.java",
     "java/src/org/chromium/net/impl/CronetUrlRequestContext.java",
+    "java/src/org/chromium/net/impl/NetworkChangeNotifierIniter.java",
   ]
   jni_package = "cronet"
 }
 
 java_cpp_enum("effective_connection_type_java") {
   sources = [
     "//net/nqe/effective_connection_type.h",
   ]
 }
 
@@ skipping 152 matching lines @@
       "//components/cronet/android/cronet_upload_data_stream_adapter.cc",
       "//components/cronet/android/cronet_upload_data_stream_adapter.h",
       "//components/cronet/android/cronet_url_request_adapter.cc",
       "//components/cronet/android/cronet_url_request_adapter.h",
       "//components/cronet/android/cronet_url_request_context_adapter.cc",
       "//components/cronet/android/cronet_url_request_context_adapter.h",
       "//components/cronet/android/io_buffer_with_byte_buffer.cc",
       "//components/cronet/android/io_buffer_with_byte_buffer.h",
       "//components/cronet/android/metrics_util.cc",
       "//components/cronet/android/metrics_util.h",
+      "//components/cronet/android/network_change_notifier_initer.cc",
+      "//components/cronet/android/network_change_notifier_initer.h",
       "//components/cronet/android/url_request_error.cc",
       "//components/cronet/android/url_request_error.h",
       "//components/cronet/histogram_manager.cc",
       "//components/cronet/histogram_manager.h",
       "//components/cronet/stale_host_resolver.cc",
       "//components/cronet/stale_host_resolver.h",
       "//components/cronet/url_request_context_config.cc",
       "//components/cronet/url_request_context_config.h",
     ]
 
@@ skipping 160 matching lines @@
   java_files = [
     "java/src/org/chromium/net/impl/BidirectionalStreamBuilderImpl.java",
     "java/src/org/chromium/net/impl/CronetBidirectionalStream.java",
     "java/src/org/chromium/net/impl/CronetLibraryLoader.java",
     "java/src/org/chromium/net/impl/CronetMetrics.java",
     "java/src/org/chromium/net/impl/CronetUploadDataStream.java",
     "java/src/org/chromium/net/impl/CronetUrlRequest.java",
     "java/src/org/chromium/net/impl/CronetUrlRequestContext.java",
     "java/src/org/chromium/net/impl/NativeCronetEngineBuilderImpl.java",
     "java/src/org/chromium/net/impl/NativeCronetProvider.java",
+    "java/src/org/chromium/net/impl/NetworkChangeNotifierIniter.java",
     "java/src/org/chromium/net/urlconnection/CronetBufferedOutputStream.java",
     "java/src/org/chromium/net/urlconnection/CronetChunkedOutputStream.java",
     "java/src/org/chromium/net/urlconnection/CronetFixedModeOutputStream.java",
     "java/src/org/chromium/net/urlconnection/CronetHttpURLConnection.java",
     "java/src/org/chromium/net/urlconnection/CronetHttpURLStreamHandler.java",
     "java/src/org/chromium/net/urlconnection/CronetInputStream.java",
     "java/src/org/chromium/net/urlconnection/CronetOutputStream.java",
     "java/src/org/chromium/net/urlconnection/CronetURLStreamHandlerFactory.java",
     "java/src/org/chromium/net/urlconnection/MessageLoop.java",
   ]
@@ skipping 1106 matching lines @@
     deps = [
       ":cronet_package_copy_native_test_lib",
       ":cronet_package_copy_native_test_lib_unstripped",
       ":cronet_package_copy_test_assets",
       ":cronet_package_copy_test_files",
       ":cronet_package_copy_test_support_apks",
       ":repackage_extracted_test_jars",
     ]
   }
 }