Allow server endpoint to be injected into the NetMetricsLogUploader from chrome/

chrome/browser/metrics/chrome_metrics_service_client.cc

Index: chrome/browser/metrics/chrome_metrics_service_client.cc
diff --git a/chrome/browser/metrics/chrome_metrics_service_client.cc b/chrome/browser/metrics/chrome_metrics_service_client.cc
index 5d3094134cc2106451f365ecdd04e3c89ecf2da7..9632c9c90b85d53a1859df797c480aac981c0e16 100644
--- a/chrome/browser/metrics/chrome_metrics_service_client.cc
+++ b/chrome/browser/metrics/chrome_metrics_service_client.cc
@@ -23,6 +23,7 @@
 #include "chrome/browser/google/google_brand.h"
 #include "chrome/browser/metrics/chrome_stability_metrics_provider.h"
 #include "chrome/browser/metrics/omnibox_metrics_provider.h"
+#include "chrome/browser/metrics/url_constants.h"
 #include "chrome/browser/ui/browser_otr_state.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_switches.h"
@@ -236,12 +237,12 @@ void ChromeMetricsServiceClient::CollectFinalMetrics(
 
 scoped_ptr<metrics::MetricsLogUploader>
 ChromeMetricsServiceClient::CreateUploader(
-    const std::string& server_url,
-    const std::string& mime_type,
     const base::Callback<void(int)>& on_upload_complete) {
   return scoped_ptr<metrics::MetricsLogUploader>(
       new metrics::NetMetricsLogUploader(
-          g_browser_process->system_request_context(), server_url, mime_type,
+          g_browser_process->system_request_context(),
+          metrics::kMetricsServerUrl,
+          metrics::kMetricsMimeType,
           on_upload_complete));
 }