Move frame-related methods out of GoogleLandingViewController

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

Index: ios/chrome/browser/ui/content_suggestions/cells/content_suggestions_most_visited_item.mm
diff --git a/ios/chrome/browser/ui/content_suggestions/cells/content_suggestions_most_visited_item.mm b/ios/chrome/browser/ui/content_suggestions/cells/content_suggestions_most_visited_item.mm
index bdad43a9fa824293aed16c58d67db906c9964bb8..b377bd329038ddd77b4ed4f1cdf9a7305d044f7b 100644
--- a/ios/chrome/browser/ui/content_suggestions/cells/content_suggestions_most_visited_item.mm
+++ b/ios/chrome/browser/ui/content_suggestions/cells/content_suggestions_most_visited_item.mm
@@ -95,7 +95,7 @@ const CGFloat kSpacingIPad = 24;
 
     for (UIStackView* row in self.stackViews) {
       row.axis = UILayoutConstraintAxisHorizontal;
-      row.spacing = [self spacing];
+      row.spacing = [ContentSuggestionsMostVisitedCell spacing];
       row.translatesAutoresizingMaskIntoConstraints = NO;
       [_stackContainer addSubview:row];
       row.layoutMarginsRelativeArrangement = YES;
@@ -136,15 +136,28 @@ const CGFloat kSpacingIPad = 24;
 - (NSUInteger)numberOfTilesPerLine {
   CGFloat availableWidth = self.contentView.bounds.size.width;
 
-  if (availableWidth > [self widthForNumberOfItem:4])
+  NSUInteger numberOfTiles =
+      [ContentSuggestionsMostVisitedCell numberOfTilesForWidth:availableWidth];
+  DCHECK(numberOfTiles > 1);
+  return numberOfTiles;
+}
+
++ (NSUInteger)numberOfTilesForWidth:(CGFloat)availableWidth {
+  if (availableWidth >
+      [ContentSuggestionsMostVisitedCell widthForNumberOfItem:4])
     return 4;
-  if (availableWidth > [self widthForNumberOfItem:3])
+  if (availableWidth >
+      [ContentSuggestionsMostVisitedCell widthForNumberOfItem:3])
     return 3;
-  if (availableWidth > [self widthForNumberOfItem:2])
+  if (availableWidth >
+      [ContentSuggestionsMostVisitedCell widthForNumberOfItem:2])
     return 2;
 
-  NOTREACHED();
-  return 2;
+  return 1;
+}
+
++ (CGFloat)spacing {
+  return IsIPadIdiom() ? kSpacingIPad : kSpacingIPhone;
 }
 
 #pragma mark - UIView
@@ -192,18 +205,14 @@ const CGFloat kSpacingIPad = 24;
     }
   }
 
-  self.containerWidth.constant =
-      [self widthForNumberOfItem:numberOfTilesPerLine];
-}
-
-// Returns the spacing between tiles, based on the device.
-- (CGFloat)spacing {
-  return IsIPadIdiom() ? kSpacingIPad : kSpacingIPhone;
+  self.containerWidth.constant = [ContentSuggestionsMostVisitedCell
+      widthForNumberOfItem:numberOfTilesPerLine];
 }
 
-// Returns the width necessary to fit |numberOfItem| items.
-- (CGFloat)widthForNumberOfItem:(NSUInteger)numberOfItem {
-  return (numberOfItem - 1) * [self spacing] +
+// Returns the width necessary to fit |numberOfItem| items, with padding on the
+// side.
++ (CGFloat)widthForNumberOfItem:(NSUInteger)numberOfItem {
+  return (numberOfItem - 1) * [ContentSuggestionsMostVisitedCell spacing] +
          numberOfItem * [ContentSuggestionsMostVisitedTile width];
 }