Notify native clients when Physical Web URL metadata is updated

chrome/browser/android/physical_web/physical_web_data_source_android.cc

 // Copyright 2016 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.
 
 #include "chrome/browser/android/physical_web/physical_web_data_source_android.h"
 
 #include <jni.h>
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
@@ skipping 81 matching lines @@
                                   (long)pw_collection.get());
 
   return pw_collection->GetMetadataList();
 }
 
 bool PhysicalWebDataSourceAndroid::HasUnresolvedDiscoveries() {
   NOTIMPLEMENTED();
   return false;
 }
 
+void PhysicalWebDataSourceAndroid::OnFound(
+    JNIEnv* env,
+    const base::android::JavaParamRef<jobject>& obj,
+    const base::android::JavaParamRef<jstring>& j_url) {
+  std::string url = ConvertJavaStringToUTF8(env, j_url);
+  NotifyOnFound(url);
+}
+
+void PhysicalWebDataSourceAndroid::OnLost(
+    JNIEnv* env,
+    const base::android::JavaParamRef<jobject>& obj,
+    const base::android::JavaParamRef<jstring>& j_url) {
+  std::string url = ConvertJavaStringToUTF8(env, j_url);
+  NotifyOnLost(url);
+}
+
+void PhysicalWebDataSourceAndroid::OnDistanceChanged(
+    JNIEnv* env,
+    const base::android::JavaParamRef<jobject>& obj,
+    const base::android::JavaParamRef<jstring>& j_url,
+    jdouble distance_estimate) {
+  std::string url = ConvertJavaStringToUTF8(env, j_url);
+  NotifyOnDistanceChanged(url, distance_estimate);
+}
+
 // static
 bool PhysicalWebDataSourceAndroid::RegisterPhysicalWebDataSource(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 static jlong Init(JNIEnv* env, const JavaParamRef<jobject>& obj) {
   PhysicalWebDataSource* data_source =
       g_browser_process->GetPhysicalWebDataSource();
   return reinterpret_cast<intptr_t>(data_source);
 }