[iOS][Dark mode] Use custom semantic colors in reading list

Bug: 976665
Change-Id: Iaab827e250e73c7ea788442285ddfd5ad2050f58
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1731903
Commit-Queue: Robbie Gibson <rkgibson@google.com>
Reviewed-by: Gauthier Ambard <gambard@chromium.org>
Cr-Commit-Position: refs/heads/master@{#683607}

ios/chrome/browser/ui/reading_list/number_badge_view.mm

@@ -102,7 +102,7 @@ const CGFloat kLabelMargin = 2.5f;
     [self addSubview:self.textBadge];
     self.didAddSubviews = YES;
     [self activateConstraints];
-    self.backgroundColor = [UIColor clearColor];
+    self.backgroundColor = UIColor.clearColor;
     // Start hidden.
     self.alpha = 0.0;
     self.hidden = YES;

ios/chrome/browser/ui/reading_list/reading_list_toolbar_button_manager.mm

@@ -8,6 +8,7 @@
 #import "ios/chrome/browser/ui/alert_coordinator/action_sheet_coordinator.h"
 #import "ios/chrome/browser/ui/reading_list/reading_list_toolbar_button_commands.h"
 #import "ios/chrome/browser/ui/reading_list/reading_list_toolbar_button_identifiers.h"
+#import "ios/chrome/common/colors/semantic_color_names.h"
 #include "ios/chrome/grit/ios_strings.h"
 #include "ui/base/l10n/l10n_util_mac.h"
 
@@ -80,7 +81,7 @@ NSString* GetMarkButtonTitleForSelectionState(ReadingListSelectionState state) {
                target:nil
                action:@selector(deleteSelectedReadingListItems)];
     _deleteButton.accessibilityIdentifier = kReadingListToolbarDeleteButtonID;
-    _deleteButton.tintColor = [UIColor redColor];
+    _deleteButton.tintColor = [UIColor colorNamed:kRedColor];
 
     _deleteAllReadButton = [[UIBarButtonItem alloc]
         initWithTitle:l10n_util::GetNSString(
@@ -90,7 +91,7 @@ NSString* GetMarkButtonTitleForSelectionState(ReadingListSelectionState state) {
                action:@selector(deleteAllReadReadingListItems)];
     _deleteAllReadButton.accessibilityIdentifier =
         kReadingListToolbarDeleteAllReadButtonID;
-    _deleteAllReadButton.tintColor = [UIColor redColor];
+    _deleteAllReadButton.tintColor = [UIColor colorNamed:kRedColor];
 
     _cancelButton = [[UIBarButtonItem alloc]
         initWithTitle:l10n_util::GetNSString(IDS_IOS_READING_LIST_CANCEL_BUTTON)

ios/chrome/browser/ui/reading_list/text_badge_view.mm

@@ -6,6 +6,7 @@
 
 #include "base/logging.h"
 #include "ios/chrome/browser/ui/util/ui_util.h"
+#import "ios/chrome/common/colors/semantic_color_names.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
@@ -60,10 +61,8 @@ const CGFloat kDefaultLabelHorizontalMargin = 8.5f;
     [self addSubview:self.label];
     self.didAddSubviews = YES;
     [self activateConstraints];
-    [self setBackgroundColor:[UIColor colorWithRed:0.101
-                                             green:0.45
-                                              blue:0.909
-                                             alpha:0.1]];
+    [self setBackgroundColor:[[UIColor colorNamed:kBlueColor]
+                                 colorWithAlphaComponent:0.1]];
     [self setAccessibilityLabel:self.label.text];
   }
   [super willMoveToSuperview:newSuperview];
@@ -94,8 +93,7 @@ const CGFloat kDefaultLabelHorizontalMargin = 8.5f;
   UILabel* label = [[UILabel alloc] initWithFrame:CGRectZero];
   [label
       setFont:[UIFont systemFontOfSize:kFontSize weight:UIFontWeightSemibold]];
-  [label
-      setTextColor:[UIColor colorWithRed:0.101 green:0.45 blue:0.909 alpha:1]];
+  [label setTextColor:[UIColor colorNamed:kBlueColor]];
   [label setTranslatesAutoresizingMaskIntoConstraints:NO];
   [label setText:text];
   [label setTextAlignment:NSTextAlignmentCenter];