Record the data use by content type

components/data_use_measurement/core/data_use_user_data.cc

 // 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.
 
 #include "components/data_use_measurement/core/data_use_user_data.h"
 
 #if defined(OS_ANDROID)
 #include "base/android/application_status_listener.h"
 #endif
 
@@ skipping 11 matching lines @@
              : DataUseUserData::BACKGROUND;
 #else
   // If the OS is not Android, all the requests are considered Foreground.
   return DataUseUserData::FOREGROUND;
 #endif
 }
 
 }  // namespace
 
 DataUseUserData::DataUseUserData(ServiceName service_name, AppState app_state)
-    : service_name_(service_name), app_state_(app_state) {}
+    : service_name_(service_name),
+      app_state_(app_state),
+      content_type_(DataUseContentType::OTHER) {}
 
 DataUseUserData::~DataUseUserData() {}
 
 // static
 const void* const DataUseUserData::kUserDataKey =
     &DataUseUserData::kUserDataKey;
 
 // static
 base::SupportsUserData::Data* DataUseUserData::Create(
     ServiceName service_name) {
@@ skipping 60 matching lines @@
 }
 
 // static
 void DataUseUserData::AttachToFetcher(net::URLFetcher* fetcher,
                                       ServiceName service_name) {
   fetcher->SetURLRequestUserData(kUserDataKey,
                                  base::Bind(&Create, service_name));
 }
 
 }  // namespace data_use_measurement