extract peer related to new header data/data_peer.h

Also update references in files
Related to #240.
Partially based on upstream commit https://github.com/telegramdesktop/tdesktop/commit/ffc20e4

Telegram/SourceFiles/auth_session.h

@@ -23,7 +23,7 @@
 #pragma once
 
 #include "base/timer.h"
-#include "structs.h"
+#include "data/data_peer.h"
 
 namespace Storage {
 class Downloader;

Telegram/SourceFiles/boxes/edit_participant_box.h

@@ -25,8 +25,8 @@
 #include "boxes/abstract_box.h"
 #include "core/basic_types.h"
 #include "data/data_types.h"
+#include "data/data_peer.h"
 
-#include "structs.h" // temporarily. (ChannelData
 
 namespace Ui {
 class FlatLabel;

Telegram/SourceFiles/chat_helpers/field_autocomplete.h

@@ -23,7 +23,7 @@
 #pragma once
 
 #include "base/observer.h"
-#include "structs.h"
+#include "data/data_peer.h" // BotCommand
 #include "ui/animation.h"
 #include "ui/twidget.h"
 #include <QTimer>

Telegram/SourceFiles/data/data_types.h

@@ -26,6 +26,7 @@
 #include <QPair>
 #include "core/utils.h" // TimeMs and stuff
 
+using PhotoId = quint64;
 using VideoId = quint64;
 using AudioId = quint64;
 using DocumentId = quint64;

Telegram/SourceFiles/dialogs/dialogs_indexed_list.h

@@ -24,7 +24,7 @@
 
 #include "dialogs/dialogs_common.h"
 #include "dialogs/dialogs_list.h"
-#include "structs.h"
+#include "data/data_peer.h" // PeerData and inner
 
 class History;
 

Telegram/SourceFiles/history/history.h

@@ -29,6 +29,7 @@
 #include "ui/animation.h" // For BasicAnimation
 #include "ui/effects/send_action_animations.h" // For SendActionAnimation
 #include "ui/text/text.h"
+#include "data/data_peer.h"
 #include "data/data_photo.h"
 #include "data/data_game.h"
 #include "structs.h"

Telegram/SourceFiles/profile/profile_block_group_members.h

@@ -24,8 +24,8 @@
 
 #include "QTimer"
 #include "core/click_handler.h"
+#include "data/data_peer.h" // PeerData, UserData
 #include "profile/profile_block_peer_list.h"
-#include "structs.h"
 
 class UserData;
 class ChannelData;

Telegram/SourceFiles/profile/profile_common_groups_section.h

@@ -22,7 +22,7 @@
 //
 #pragma once
 
-#include "structs.h"
+#include "data/data_peer.h" // PeerData, UserData
 #include "ui/effects/ripple_animation.h"
 #include "ui/text/text.h"
 #include "window/section_memento.h"

Telegram/SourceFiles/window/notifications_utilities.cpp

@@ -23,6 +23,7 @@
 #include "window/notifications_utilities.h"
 
 #include "messenger.h"
+#include "data/data_peer.h"
 #include "platform/platform_specific.h"
 #include "styles/style_window.h"