[iOS] Change the Articles layout on Accessibility ContentSize

When the user is picking a preferred ContentSize from the
"accessibility" bucket, the layout of the article should be different.

Bug: 893525
Cq-Include-Trybots: luci.chromium.try:ios-simulator-cronet;luci.chromium.try:ios-simulator-full-configs
Change-Id: I8686c33ef80775d799e6fbb8752ee4c011798154
Reviewed-on: https://chromium-review.googlesource.com/c/1273147Reviewed-by: Mark Cogan <marq@chromium.org>
Reviewed-by: Olivier Robin <olivierrobin@chromium.org>
Commit-Queue: Gauthier Ambard <gambard@chromium.org>
Cr-Commit-Position: refs/heads/master@{#598805}

ios/chrome/browser/ui/content_suggestions/cells/content_suggestions_cell.h

@@ -29,7 +29,7 @@
 // Returns the height needed by a cell contained in |width| and containing the
 // listed informations.
 + (CGFloat)heightForWidth:(CGFloat)width
-                withImage:(BOOL)hasImage
+       withImageAvailable:(BOOL)hasImage
                     title:(NSString*)title
             publisherName:(NSString*)publisherName
           publicationDate:(NSString*)publicationDate;

ios/chrome/browser/ui/content_suggestions/cells/content_suggestions_item.mm

@@ -93,7 +93,7 @@
 
 - (CGFloat)cellHeightForWidth:(CGFloat)width {
   return [self.cellClass heightForWidth:width
-                              withImage:self.hasImage
+                     withImageAvailable:self.hasImage
                                   title:self.title
                           publisherName:self.publisher
                         publicationDate:[self relativeDate]];

ios/chrome/browser/ui/uikit_ui_util.h

@@ -248,4 +248,8 @@ UIEdgeInsets SafeAreaInsetsForView(UIView* view);
 // more than 99 tabs open.
 NSString* TextForTabCount(long count);
 
+// Helper check if |category| is an accessibility category. For iOS 11+ it is a
+// wrapper around UIContentSizeCategoryIsAccessibilityCategory.
+BOOL ContentSizeCategoryIsAccessibilityCategory(UIContentSizeCategory category);
+
 #endif  // IOS_CHROME_BROWSER_UI_UIKIT_UI_UTIL_H_

ios/chrome/browser/ui/uikit_ui_util.mm

@@ -679,3 +679,16 @@ NSString* TextForTabCount(long count) {
     return @":)";
   return [NSString stringWithFormat:@"%ld", count];
 }
+
+BOOL ContentSizeCategoryIsAccessibilityCategory(
+    UIContentSizeCategory category) {
+  if (@available(iOS 11.0, *)) {
+    return UIContentSizeCategoryIsAccessibilityCategory(category);
+  } else {
+    return category == UIContentSizeCategoryAccessibilityExtraExtraExtraLarge ||
+           category == UIContentSizeCategoryAccessibilityExtraExtraLarge ||
+           category == UIContentSizeCategoryAccessibilityExtraLarge ||
+           category == UIContentSizeCategoryAccessibilityLarge ||
+           category == UIContentSizeCategoryAccessibilityMedium;
+  }
+}

ios/showcase/content_suggestions/sc_content_suggestions_item.mm

@@ -50,7 +50,7 @@
 
 - (CGFloat)cellHeightForWidth:(CGFloat)width {
   return [self.cellClass heightForWidth:width
-                              withImage:self.hasImage
+                     withImageAvailable:self.hasImage
                                   title:self.title
                           publisherName:self.publisher
                         publicationDate:self.publicationDate];