Slightly optimized include directives in some headers.

Telegram/SourceFiles/intro/intro_code.cpp

@@ -10,6 +10,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "lang/lang_keys.h"
 #include "intro/intro_signup.h"
 #include "intro/intro_password_check.h"
+#include "boxes/abstract_box.h"
 #include "core/file_utilities.h"
 #include "core/update_checker.h"
 #include "ui/widgets/buttons.h"

Telegram/SourceFiles/intro/intro_password_check.cpp

@@ -10,6 +10,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "intro/intro_widget.h"
 #include "core/core_cloud_password.h"
 #include "ui/boxes/confirm_box.h"
+#include "boxes/abstract_box.h"
 #include "boxes/passcode_box.h"
 #include "lang/lang_keys.h"
 #include "intro/intro_signup.h"

Telegram/SourceFiles/intro/intro_phone.cpp

@@ -21,6 +21,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "main/main_session.h"
 #include "data/data_user.h"
 #include "ui/boxes/confirm_box.h"
+#include "boxes/abstract_box.h"
 #include "boxes/phone_banned_box.h"
 #include "core/application.h"
 #include "window/window_controller.h"

Telegram/SourceFiles/intro/intro_qr.cpp

@@ -7,6 +7,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #include "intro/intro_qr.h"
 
+#include "boxes/abstract_box.h"
 #include "intro/intro_phone.h"
 #include "intro/intro_widget.h"
 #include "intro/intro_password_check.h"

Telegram/SourceFiles/intro/intro_signup.cpp

@@ -7,6 +7,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #include "intro/intro_signup.h"
 
+#include "boxes/abstract_box.h"
 #include "intro/intro_widget.h"
 #include "core/file_utilities.h"
 #include "ui/boxes/confirm_box.h"

Telegram/SourceFiles/intro/intro_step.cpp

@@ -19,6 +19,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "main/main_domain.h"
 #include "main/main_session.h"
 #include "main/main_session_settings.h"
+#include "boxes/abstract_box.h"
 #include "core/application.h"
 #include "core/core_settings.h"
 #include "apiwrap.h"

Telegram/SourceFiles/intro/intro_widget.cpp

@@ -31,6 +31,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/widgets/buttons.h"
 #include "ui/widgets/labels.h"
 #include "ui/wrap/fade_wrap.h"
+#include "boxes/abstract_box.h"
 #include "core/update_checker.h"
 #include "core/application.h"
 #include "mtproto/mtproto_dc_options.h"