Change PluginInstance so it shuts down the NaCl Plugin when it uses the IPC PPAPI proxy.

BUG=116317
TEST=manual

Review URL: https://chromiumcodereview.appspot.com/10837086

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@149885 0039d316-1c4b-4281-b951-d872f2087c98

webkit/plugins/ppapi/ppapi_plugin_instance.cc

@@ -403,6 +403,8 @@ void PluginInstance::Delete() {
   // destructor of the instance object tries to use the instance.
   message_channel_->SetPassthroughObject(NULL);
   instance_interface_->DidDestroy(pp_instance());
+  if (nacl_plugin_instance_interface_.get())
+    nacl_plugin_instance_interface_->DidDestroy(pp_instance());
 
   if (fullscreen_container_) {
     fullscreen_container_->Destroy();
@@ -2133,6 +2135,11 @@ PP_Var PluginInstance::GetPluginInstanceURL(
 }
 
 bool PluginInstance::ResetAsProxied() {
+  // Remember the existing instance interface, so we can call DidDestroy in
+  // our Delete() method. This will delete the NaCl plugin instance, which
+  // will shut down the NaCl process.
+  nacl_plugin_instance_interface_.reset(instance_interface_.release());
+
   base::Callback<const void*(const char*)> get_plugin_interface_func =
       base::Bind(&PluginModule::GetPluginInterface, module_.get());
   PPP_Instance_Combined* ppp_instance_combined =

webkit/plugins/ppapi/ppapi_plugin_instance.h

@@ -506,6 +506,10 @@ class WEBKIT_PLUGINS_EXPORT PluginInstance :
   PluginDelegate* delegate_;
   scoped_refptr<PluginModule> module_;
   scoped_ptr< ::ppapi::PPP_Instance_Combined> instance_interface_;
+  // If this is the NaCl plugin, store its instance interface so we can shut
+  // it down properly when using the IPC-based PPAPI proxy.
+  // TODO(bbudge) Remove this when the proxy switch is complete.
+  scoped_ptr< ::ppapi::PPP_Instance_Combined> nacl_plugin_instance_interface_;
 
   PP_Instance pp_instance_;