NetPlay: Allow hosts to stop the game by closing the game window

Source/Core/DolphinWX/Src/FrameTools.cpp

@@ -1049,6 +1049,7 @@ void CFrame::DoStop()
 			DoRecordingSave();
 		if(Movie::IsPlayingInput() || Movie::IsRecordingInput())
 			Movie::EndPlayInput(false);
+		NetPlay::StopGame();
 
 		wxBeginBusyCursor();
 		BootManager::Stop();

Source/Core/DolphinWX/Src/NetWindow.cpp

@@ -432,7 +432,7 @@ void NetPlayDiag::OnStart(wxCommandEvent&)
 
 void NetPlayDiag::OnStop(wxCommandEvent&)
 {
-	netplay_server->StopGame();
+	NetPlay::StopGame();
 }
 
 void NetPlayDiag::BootGame(const std::string& filename)
@@ -661,3 +661,11 @@ void PadMapDiag::OnAdjust(wxCommandEvent& event)
 	for (unsigned int i=0; i<4; ++i)
 		m_mapping[i] = m_map_cbox[i]->GetSelection() - 1;
 }
+
+void NetPlay::StopGame()
+{
+	if (netplay_server != NULL)
+		netplay_server->StopGame();
+
+	// TODO: allow non-hosting clients to close the window
+}

Source/Core/DolphinWX/Src/NetWindow.h

@@ -133,5 +133,10 @@ private:
 	int* const	m_mapping;
 };
 
+namespace NetPlay
+{
+	void StopGame();
+}
+
 #endif // _NETWINDOW_H_