Privatize StrongBinding lifetime management

chrome/browser/metrics/leak_detector/leak_detector_remote_controller.h

Index: chrome/browser/metrics/leak_detector/leak_detector_remote_controller.h
diff --git a/chrome/browser/metrics/leak_detector/leak_detector_remote_controller.h b/chrome/browser/metrics/leak_detector/leak_detector_remote_controller.h
index f9e267cbabc71b238212476caa118fc9965349a3..ebb49110c18f5083cf7b9fcb0681bc8009f33df8 100644
--- a/chrome/browser/metrics/leak_detector/leak_detector_remote_controller.h
+++ b/chrome/browser/metrics/leak_detector/leak_detector_remote_controller.h
@@ -12,7 +12,6 @@
 #include "components/metrics/leak_detector/leak_detector.mojom.h"
 #include "components/metrics/proto/memory_leak_report.pb.h"
 #include "mojo/public/cpp/bindings/interface_request.h"
-#include "mojo/public/cpp/bindings/strong_binding.h"
 
 namespace metrics {
 
@@ -56,14 +55,12 @@ class LeakDetectorRemoteController : public mojom::LeakDetector {
   static void SetLocalControllerInstance(LocalController* controller);
 
  private:
-  explicit LeakDetectorRemoteController(mojom::LeakDetectorRequest request);
+  LeakDetectorRemoteController();
 
   // Gets called when the remote process terminates and the Mojo connection gets
   // closed as a result.
   void OnRemoteProcessShutdown();
 
-  mojo::StrongBinding<mojom::LeakDetector> binding_;
-
   // Indicates whether remote process received MemoryLeakReportProto::Params
   // with a non-zero sampling rate, i.e. enabled leak detector.
   bool leak_detector_enabled_on_remote_process_;