Remove MessageLoop::current() from chrome_metrics_service_client.cc

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 4ccf049baebec4a84be1f0db5405acb8ca0a8d96..7d4120f0d25af10057aaa19b2dae656cdb44ea51 100644
--- a/chrome/browser/metrics/chrome_metrics_service_client.cc
+++ b/chrome/browser/metrics/chrome_metrics_service_client.cc
@@ -21,6 +21,7 @@
 #include "base/rand_util.h"
 #include "base/strings/string16.h"
 #include "base/threading/platform_thread.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "build/build_config.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
@@ -743,8 +744,8 @@ void ChromeMetricsServiceClient::OnMemoryDetailCollectionDone() {
   // Set up the callback task to call after we receive histograms from all
   // child processes. |timeout| specifies how long to wait before absolutely
   // calling us back on the task.
-  content::FetchHistogramsAsynchronously(base::MessageLoop::current(), callback,
-                                         timeout);
+  content::FetchHistogramsAsynchronously(base::ThreadTaskRunnerHandle::Get(),
+                                         callback, timeout);
 }
 
 void ChromeMetricsServiceClient::OnHistogramSynchronizationDone() {