NOISSUE Split MultiMC app object into MultiMC and Env

logic/updater/UpdateChecker.h

@@ -24,10 +24,8 @@ class UpdateChecker : public QObject
 	Q_OBJECT
 
 public:
-	UpdateChecker();
-	void checkForUpdate(bool notifyNoUpdate);
-
-	void setChannelListUrl(const QString &url) { m_channelListUrl = url; }
+	UpdateChecker(QString channelListUrl, int currentBuild);
+	void checkForUpdate(QString updateChannel, bool notifyNoUpdate);
 
 	/*!
 	 * Causes the update checker to download the channel list from the URL specified in config.h (generated by CMake).
@@ -107,5 +105,11 @@ private:
 	 * When the channel list finishes loading, if this is true, the update checker will check for updates.
 	 */
 	bool m_checkUpdateWaiting;
+
+	/*!
+	 * if m_checkUpdateWaiting, this is the last used update channel
+	 */
+	QString m_deferredUpdateChannel;
+	int m_currentBuild = -1;
 };