[Payments] Format and validate phone number by using libphonenumber

chrome/browser/autofill/android/phone_number_util_android.h

+// Copyright 2017 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.
+
+#ifndef CHROME_BROWSER_AUTOFILL_ANDROID_PHONE_NUMBER_UTIL_ANDROID_H_
+#define CHROME_BROWSER_AUTOFILL_ANDROID_PHONE_NUMBER_UTIL_ANDROID_H_
+
+#include "base/android/jni_weak_ref.h"
+#include "base/android/scoped_java_ref.h"
+#include "third_party/libphonenumber/phonenumber_api.h"
+
+using base::android::JavaParamRef;
+using base::android::ScopedJavaLocalRef;
+using i18n::phonenumbers::PhoneNumberUtil;
+
+namespace autofill {
+
+// Android wrapper of i18n::phonenumbers::PhoneNumberUtil.
+class PhoneNumberUtilAndroid {
+ public:
+  PhoneNumberUtilAndroid(JNIEnv* env, jobject obj);
+
+  // Formats the given number |jphone_number| by using
+  // i18n::phonenumbers::PhoneNumberUtil::Format.
+  ScopedJavaLocalRef<jstring> Format(
+      JNIEnv* env,
+      const JavaParamRef<jobject>& unused_obj,
+      const JavaParamRef<jstring>& jphone_number);
+
+  // Checks whether the given number |jphone_number| is valid by using
+  // i18n::phonenumbers::PhoneNumberUtil::IsValidNumber.
+  jboolean IsValidNumber(JNIEnv* env,
+                         const JavaParamRef<jobject>& unused_obj,
+                         const JavaParamRef<jstring>& jphone_number);
+
+  // Registers the JNI bindings for this class.
+  static bool Register(JNIEnv* env);
+
+ private:
+  // Pointer to the java counterpart.
+  JavaObjectWeakGlobalRef weak_java_obj_;
+
+  // Instance of i18n::phonenumbers::PhoneNumberUtil.
+  PhoneNumberUtil* phone_number_util_;
+};
+
+}  // namespace autofill
+
+#endif  // CHROME_BROWSER_AUTOFILL_ANDROID_PHONE_NUMBER_UTIL_ANDROID_H_