media: Quit MojoMediaApplication when no service is bound.

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 770b4b8f44170d68e3a5c7cae8eaa9b813bbed74..1e4278c775ff9e94000c899e43a075dcdf9a1bee 100644
--- a/media/mojo/services/mojo_cdm_service.h
+++ b/media/mojo/services/mojo_cdm_service.h
@@ -13,6 +13,10 @@
 #include "media/mojo/interfaces/content_decryption_module.mojom.h"
 #include "third_party/mojo/src/mojo/public/cpp/bindings/strong_binding.h"
 
+namespace mojo {
+class AppRefCount;
+}
+
 namespace media {
 
 class MojoCdmServiceContext;
@@ -21,8 +25,9 @@ class MojoCdmServiceContext;
 class MojoCdmService : public mojo::ContentDecryptionModule {
  public:
   // Constructs a MojoCdmService and strongly binds it to the |request|.
-  MojoCdmService(MojoCdmServiceContext* context,
-                 mojo::InterfaceRequest<mojo::ContentDecryptionModule> request);
+  MojoCdmService(mojo::InterfaceRequest<mojo::ContentDecryptionModule> request,
+                 MojoCdmServiceContext* context,
+                 scoped_ptr<mojo::AppRefCount> parent_app_refcount);
 
   ~MojoCdmService() final;
 
@@ -81,6 +86,7 @@ class MojoCdmService : public mojo::ContentDecryptionModule {
   mojo::StrongBinding<mojo::ContentDecryptionModule> binding_;
 
   MojoCdmServiceContext* context_;
+  scoped_ptr<mojo::AppRefCount> parent_app_refcount_;
   scoped_ptr<MediaKeys> cdm_;
 
   // Set to a valid CDM ID if the |cdm_| is successfully created.