Slightly improved includes in HistoryWidget.

Telegram/SourceFiles/history/history_widget.h

@@ -10,8 +10,6 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/history_drag_area.h"
 #include "history/history_view_highlight_manager.h"
 #include "history/history.h"
-#include "ui/widgets/tooltip.h"
-#include "mainwidget.h"
 #include "chat_helpers/bot_command.h"
 #include "chat_helpers/field_autocomplete.h"
 #include "window/section_widget.h"
@@ -23,11 +21,11 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "base/timer.h"
 
 struct FileLoadResult;
-struct SendingAlbum;
 enum class SendMediaType;
 class MessageLinksParser;
 struct InlineBotQuery;
 struct AutocompleteQuery;
+class History;
 
 namespace MTP {
 class Error;
@@ -48,11 +46,9 @@ struct SendAction;
 
 namespace InlineBots {
 namespace Layout {
-class ItemBase;
 class Widget;
 } // namespace Layout
 struct ResultSelected;
-class AttachBotsList;
 } // namespace InlineBots
 
 namespace Support {
@@ -61,18 +57,15 @@ struct Contact;
 } // namespace Support
 
 namespace Ui {
-class AbstractButton;
 class InnerDropdown;
 class DropdownMenu;
 class PlainShadow;
-class PopupMenu;
 class IconButton;
 class HistoryDownButton;
 class EmojiButton;
 class SendButton;
 class SilentToggle;
 class FlatButton;
-class LinkButton;
 class RoundButton;
 class PinnedBar;
 class GroupCallBar;
@@ -94,14 +87,9 @@ class SessionController;
 
 namespace ChatHelpers {
 class TabbedPanel;
-class TabbedSection;
 class TabbedSelector;
 } // namespace ChatHelpers
 
-namespace Storage {
-enum class MimeDataState;
-} // namespace Storage
-
 namespace HistoryView {
 class StickerToast;
 class TopBarWidget;
@@ -116,11 +104,8 @@ class TTLButton;
 } // namespace Controls
 } // namespace HistoryView
 
-class SendFilesBox;
 class BotKeyboard;
-class MessageField;
 class HistoryInner;
-struct HistoryMessageMarkupButton;
 
 extern const char kOptionAutoScrollInactiveChat[];