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

chromecast/browser/metrics/cast_metrics_service_client.cc

Index: chromecast/browser/metrics/cast_metrics_service_client.cc
diff --git a/chromecast/browser/metrics/cast_metrics_service_client.cc b/chromecast/browser/metrics/cast_metrics_service_client.cc
index 84192d7a5acc472c1818f279eb1658499db39115..3e97217bea0c348aef93cb71cce49ad69296cd1d 100644
--- a/chromecast/browser/metrics/cast_metrics_service_client.cc
+++ b/chromecast/browser/metrics/cast_metrics_service_client.cc
@@ -21,6 +21,7 @@
 #include "components/metrics/net/net_metrics_log_uploader.h"
 #include "components/metrics/net/network_metrics_provider.h"
 #include "components/metrics/profiler/profiler_metrics_provider.h"
+#include "components/metrics/url_constants.h"
 #include "content/public/common/content_switches.h"
 
 #if defined(OS_LINUX)
@@ -133,10 +134,8 @@ void CastMetricsServiceClient::CollectFinalMetrics(
 
 scoped_ptr< ::metrics::MetricsLogUploader>
 CastMetricsServiceClient::CreateUploader(
-    const std::string& server_url,
-    const std::string& mime_type,
     const base::Callback<void(int)>& on_upload_complete) {
-  std::string uma_server_url(server_url);
+  std::string uma_server_url(::metrics::kDefaultMetricsServerUrl);
   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
   if (command_line->HasSwitch(switches::kOverrideMetricsUploadUrl)) {
     uma_server_url.assign(
@@ -147,7 +146,7 @@ CastMetricsServiceClient::CreateUploader(
       new ::metrics::NetMetricsLogUploader(
           request_context_,
           uma_server_url,
-          mime_type,
+          ::metrics::kDefaultMetricsMimeType,
           on_upload_complete));
 }