Added GetNetworkOperatorID util func in net/base/net_util and a non-trivial implementation for Andr…

net/android/network_library.cc

Index: net/android/network_library.cc
diff --git a/net/android/network_library.cc b/net/android/network_library.cc
index ea9ec4a44a7979f098d14b3b2f090346ecfddfe1..f7e88caf14c0a4a85ccb33a01aba621609641934 100644
--- a/net/android/network_library.cc
+++ b/net/android/network_library.cc
@@ -122,6 +122,13 @@ bool GetMimeTypeFromExtension(const std::string& extension,
   return true;
 }
 
+std::string GetNetworkOperatorID() {
+  return base::android::ConvertJavaStringToUTF8(
+      Java_AndroidNetworkLibrary_getNetworkOperator(
+          base::android::AttachCurrentThread(),
+          base::android::GetApplicationContext()));
+}
+
 bool RegisterNetworkLibrary(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }