Switch UKM service to properly mark upload data as UKM and not UMA.

components/ukm/ukm_service.cc

 // 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.
 
 #include "components/ukm/ukm_service.h"
 
 #include <memory>
 #include <string>
 #include <utility>
 
@@ skipping 260 matching lines @@
   if (persisted_logs_.empty()) {
     // No logs to send, so early out and schedule the next rotation.
     scheduler_->UploadFinished(true, /* has_unsent_logs */ false);
     return;
   }
   if (!persisted_logs_.has_staged_log())
     persisted_logs_.StageLog();
   // TODO(holte): Handle data usage on cellular, etc.
   if (!log_uploader_) {
     log_uploader_ = client_->CreateUploader(
-        GetServerUrl(), kMimeType, base::Bind(&UkmService::OnLogUploadComplete,
-                                              self_ptr_factory_.GetWeakPtr()));
+        GetServerUrl(), kMimeType, metrics::MetricsLogUploader::UKM,
+        base::Bind(&UkmService::OnLogUploadComplete,
+                   self_ptr_factory_.GetWeakPtr()));
   }
   log_upload_in_progress_ = true;
 
   const std::string hash =
       base::HexEncode(persisted_logs_.staged_log_hash().data(),
                       persisted_logs_.staged_log_hash().size());
   log_uploader_->UploadLog(persisted_logs_.staged_log(), hash);
 }
 
 void UkmService::OnLogUploadComplete(int response_code) {
@@ skipping 35 matching lines @@
   }
   if (sources_.size() >= kMaxSources) {
     RecordDroppedSource(DroppedSourceReason::MAX_SOURCES_HIT);
     return;
   }
 
   sources_.push_back(std::move(source));
 }
 
 }  // namespace ukm