WebView: Create UMA uploader

android_webview/native/aw_metrics_service_client_impl.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 ANDROID_WEBVIEW_NATIVE_AW_METRICS_SERVICE_CLIENT_IMPL_
-#define ANDROID_WEBVIEW_NATIVE_AW_METRICS_SERVICE_CLIENT_IMPL_
+#ifndef ANDROID_WEBVIEW_NATIVE_AW_METRICS_SERVICE_CLIENT_IMPL_H_
+#define ANDROID_WEBVIEW_NATIVE_AW_METRICS_SERVICE_CLIENT_IMPL_H_
+
+#include <jni.h>
+#include <memory>
+#include <string>
 
 #include "android_webview/browser/aw_metrics_service_client.h"
-
-#include <jni.h>
-#include <string>
-
 #include "base/lazy_instance.h"
 #include "base/macros.h"
 #include "components/metrics/metrics_log_uploader.h"
 
 namespace metrics {
 class MetricsStateManager;
 }
 
 namespace android_webview {
 
@@ skipping 49 matching lines @@
   std::unique_ptr<metrics::MetricsStateManager> metrics_state_manager_;
   std::unique_ptr<metrics::MetricsService> metrics_service_;
 
   DISALLOW_COPY_AND_ASSIGN(AwMetricsServiceClientImpl);
 };
 
 bool RegisterAwMetricsServiceClient(JNIEnv* env);
 
 }  // namespace android_webview
 
-#endif  // ANDROID_WEBVIEW_NATIVE_AW_METRICS_SERVICE_CLIENT_IMPL_
+#endif  // ANDROID_WEBVIEW_NATIVE_AW_METRICS_SERVICE_CLIENT_IMPL_H_