Privatize StrongBinding lifetime management

media/mojo/services/mojo_cdm_service.h

Index: media/mojo/services/mojo_cdm_service.h
diff --git a/media/mojo/services/mojo_cdm_service.h b/media/mojo/services/mojo_cdm_service.h
index ee2bd47dcfea185a01f5c0be4f1654302af793ce..2005a0ec263b539bd1780649965a216dd7c6d4ed 100644
--- a/media/mojo/services/mojo_cdm_service.h
+++ b/media/mojo/services/mojo_cdm_service.h
@@ -20,7 +20,6 @@
 #include "media/mojo/services/mojo_cdm_promise.h"
 #include "media/mojo/services/mojo_cdm_service_context.h"
 #include "media/mojo/services/mojo_decryptor_service.h"
-#include "mojo/public/cpp/bindings/strong_binding.h"
 
 namespace media {
 
@@ -42,10 +41,8 @@ class MEDIA_MOJO_EXPORT MojoCdmService
   static scoped_refptr<MediaKeys> LegacyGetCdm(int cdm_id);
 
   // Constructs a MojoCdmService and strongly binds it to the |request|.
-  MojoCdmService(
-      base::WeakPtr<MojoCdmServiceContext> context,
-      CdmFactory* cdm_factory,
-      mojo::InterfaceRequest<mojom::ContentDecryptionModule> request);
+  MojoCdmService(base::WeakPtr<MojoCdmServiceContext> context,
+                 CdmFactory* cdm_factory);
 
   ~MojoCdmService() final;
 
@@ -101,7 +98,6 @@ class MEDIA_MOJO_EXPORT MojoCdmService
   // living in the same process.
   static int next_cdm_id_;
 
-  mojo::StrongBinding<mojom::ContentDecryptionModule> binding_;
   base::WeakPtr<MojoCdmServiceContext> context_;
 
   CdmFactory* cdm_factory_;