Leak detector posts notifications to task runner

chrome/browser/metrics/leak_detector_controller.cc

Index: chrome/browser/metrics/leak_detector_controller.cc
diff --git a/chrome/browser/metrics/leak_detector_controller.cc b/chrome/browser/metrics/leak_detector_controller.cc
index fef91fe08e31c1ba4954ecfa158fd392a268ade2..4f7995cc5dc24d4d077c3fca59b4e5c3e0a47cf9 100644
--- a/chrome/browser/metrics/leak_detector_controller.cc
+++ b/chrome/browser/metrics/leak_detector_controller.cc
@@ -9,6 +9,7 @@
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"
 #include "components/variations/variations_associated_data.h"
+#include "content/public/browser/browser_thread.h"
 
 namespace metrics {
 
@@ -93,7 +94,8 @@ LeakDetectorController::LeakDetectorController()
   detector->AddObserver(this);
 
   // Leak detector parameters are stored in |params_|.
-  detector->Init(params_);
+  detector->Init(params_, content::BrowserThread::GetMessageLoopProxyForThread(
+                              content::BrowserThread::UI));
 }
 
 LeakDetectorController::~LeakDetectorController() {