[iOS] Create ReadingListCoordinator.

This CL creates ReadingListCoordinator, which uses UITableViews and
replaces the old UICollectionView-based implementation.

Bug: 805209
Cq-Include-Trybots: luci.chromium.try:ios-simulator-full-configs;master.tryserver.chromium.mac:ios-simulator-cronet
Change-Id: I59acbe85cb389c69462bb72ddb7858acb1249c55
Reviewed-on: https://chromium-review.googlesource.com/1104941
Commit-Queue: Kurt Horimoto <kkhorimoto@chromium.org>
Reviewed-by: Gauthier Ambard <gambard@chromium.org>
Reviewed-by: Sergio Collazos <sczs@chromium.org>
Cr-Commit-Position: refs/heads/master@{#572157}

ios/chrome/browser/ui/browser_view_controller.mm

@@ -180,6 +180,7 @@
 #import "ios/chrome/browser/ui/qr_scanner/requirements/qr_scanner_presenting.h"
 #import "ios/chrome/browser/ui/reading_list/legacy_reading_list_coordinator.h"
 #import "ios/chrome/browser/ui/reading_list/offline_page_native_content.h"
+#import "ios/chrome/browser/ui/reading_list/reading_list_coordinator.h"
 #import "ios/chrome/browser/ui/reading_list/reading_list_menu_notifier.h"
 #import "ios/chrome/browser/ui/recent_tabs/recent_tabs_coordinator.h"
 #include "ios/chrome/browser/ui/rtl_geometry.h"
@@ -487,7 +488,7 @@ NSString* const kBrowserViewControllerSnackbarCategory =
   scoped_refptr<VoiceSearchController> _voiceSearchController;
 
   // Used to display the Reading List.
-  LegacyReadingListCoordinator* _readingListCoordinator;
+  ChromeCoordinator* _readingListCoordinator;
 
   // Used to display the Find In Page UI. Nil if not visible.
   FindBarControllerIOS* _findBarController;
@@ -4694,10 +4695,16 @@ applicationCommandEndpoint:(id<ApplicationCommands>)applicationCommandEndpoint {
 }
 
 - (void)showReadingList {
-  _readingListCoordinator = [[LegacyReadingListCoordinator alloc]
-      initWithBaseViewController:self
-                    browserState:self.browserState
-                          loader:self];
+  _readingListCoordinator =
+      experimental_flags::IsReadingListUIRebootEnabled()
+          ? [[ReadingListCoordinator alloc]
+                initWithBaseViewController:self
+                              browserState:self.browserState
+                                    loader:self]
+          : [[LegacyReadingListCoordinator alloc]
+                initWithBaseViewController:self
+                              browserState:self.browserState
+                                    loader:self];
 
   [_readingListCoordinator start];
 }

ios/chrome/browser/ui/reading_list/BUILD.gn

@@ -10,6 +10,8 @@ source_set("reading_list") {
     "offline_page_native_content.mm",
     "reading_list_collection_view_item.h",
     "reading_list_collection_view_item.mm",
+    "reading_list_coordinator.h",
+    "reading_list_coordinator.mm",
     "reading_list_list_item.h",
     "reading_list_list_item_custom_action_factory.h",
     "reading_list_list_item_custom_action_factory.mm",
@@ -53,6 +55,8 @@ source_set("reading_list") {
     "//ios/chrome/browser/ui/reading_list/resources:distillation_fail_new",
     "//ios/chrome/browser/ui/side_swipe",
     "//ios/chrome/browser/ui/static_content",
+    "//ios/chrome/browser/ui/table_view",
+    "//ios/chrome/browser/ui/table_view:presentation",
     "//ios/chrome/browser/ui/table_view:styler",
     "//ios/chrome/browser/ui/table_view/cells",
     "//ios/chrome/browser/ui/util",

ios/chrome/browser/ui/reading_list/reading_list_coordinator.h

+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef IOS_CHROME_BROWSER_UI_READING_LIST_READING_LIST_COORDINATOR_H_
+#define IOS_CHROME_BROWSER_UI_READING_LIST_READING_LIST_COORDINATOR_H_
+
+#import "ios/chrome/browser/ui/coordinators/chrome_coordinator.h"
+
+@protocol UrlLoader;
+
+// Coordinator for Reading List, displaying the Reading List when starting.
+@interface ReadingListCoordinator : ChromeCoordinator
+
+// Designated initialier for a ReadingListCoordinator that loads reading list
+// items using |loader|.
+- (nullable instancetype)
+initWithBaseViewController:(nullable UIViewController*)viewController
+              browserState:(nonnull ios::ChromeBrowserState*)browserState
+                    loader:(nullable id<UrlLoader>)loader
+    NS_DESIGNATED_INITIALIZER;
+
+- (nullable instancetype)initWithBaseViewController:
+    (nullable UIViewController*)viewController NS_UNAVAILABLE;
+- (nullable instancetype)
+initWithBaseViewController:(nullable UIViewController*)viewController
+              browserState:(nullable ios::ChromeBrowserState*)browserState
+    NS_UNAVAILABLE;
+
+@end
+
+#endif  // IOS_CHROME_BROWSER_UI_READING_LIST_READING_LIST_COORDINATOR_H_