Add autolayout height constraint on ReadingListCell

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

 // Copyright 2016 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.
 
 #import "ios/chrome/browser/ui/reading_list/reading_list_collection_view_item.h"
 
 #include "base/strings/sys_string_conversions.h"
 #import "ios/chrome/browser/ui/colors/MDCPalette+CrAdditions.h"
 #import "ios/chrome/browser/ui/favicon_view.h"
 #import "ios/chrome/browser/ui/reading_list/reading_list_collection_view_item_accessibility_delegate.h"
 #import "ios/chrome/browser/ui/uikit_ui_util.h"
 #include "ios/chrome/grit/ios_strings.h"
 #import "ios/third_party/material_components_ios/src/components/Palettes/src/MaterialPalettes.h"
 #import "ios/third_party/material_roboto_font_loader_ios/src/src/MaterialRobotoFontLoader.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/l10n/time_format.h"
 #import "url/gurl.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 namespace {
 NSString* kSuccessImageString = @"distillation_success";
 NSString* kFailureImageString = @"distillation_fail";
 
+// Height of the cell.
+const CGFloat kCellHeight = 72;
+
 // Distillation indicator constants.
 const CGFloat kDistillationIndicatorSize = 18;
 
 // Margin for the elements displayed in the cell.
 const CGFloat kMargin = 16;
 
 // Transparency of the distillation size and date.
 const CGFloat kInfoTextTransparency = 0.38;
 }  // namespace
 
@@ skipping 283 matching lines @@
 
     // Sets the bottom of the text. Lower the priority so we can add the details
     // later.
     NSLayoutConstraint* bottomTextConstraint = [_textGuide.bottomAnchor
         constraintEqualToAnchor:_subtitleLabel.bottomAnchor];
     bottomTextConstraint.priority = UILayoutPriorityDefaultHigh;
     NSLayoutConstraint* topTextConstraint =
         [_textGuide.topAnchor constraintEqualToAnchor:_titleLabel.topAnchor];
 
     [NSLayoutConstraint activateConstraints:@[
+      // Height for the cell.
+      [self.contentView.heightAnchor constraintEqualToConstant:kCellHeight],
+
+      // Text constraints.
       topTextConstraint,
       bottomTextConstraint,
+
       // Favicons are always the same size.
       [_faviconView.widthAnchor constraintEqualToConstant:faviconSize],
       [_faviconView.heightAnchor constraintEqualToConstant:faviconSize],
+
       // Center the content (favicon and text) vertically.
       [_faviconView.centerYAnchor
           constraintEqualToAnchor:self.contentView.centerYAnchor],
       [_textGuide.centerYAnchor
           constraintEqualToAnchor:self.contentView.centerYAnchor],
 
       // Place the download indicator in the bottom right corner of the favicon.
       [[_downloadIndicator centerXAnchor]
           constraintEqualToAnchor:_faviconView.trailingAnchor],
       [[_downloadIndicator centerYAnchor]
@@ skipping 97 matching lines @@
   self.subtitleLabel.text = nil;
   self.distillationState = ReadingListEntry::WAITING;
   self.distillationDate = 0;
   self.distillationSize = 0;
   [self setShowInfo:NO];
   self.accessibilityCustomActions = nil;
   [super prepareForReuse];
 }
 
 @end