Move frame-related methods out of GoogleLandingViewController

ios/chrome/browser/ui/content_suggestions/content_suggestions_collection_utils.h

+// Copyright 2017 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_CONTENT_SUGGESTIONS_CONTENT_SUGGESTIONS_COLLECTION_UTILS_H_
+#define IOS_CHROME_BROWSER_UI_CONTENT_SUGGESTIONS_CONTENT_SUGGESTIONS_COLLECTION_UTILS_H_
+
+#import <UIKit/UIKit.h>
+
+namespace content_suggestions {
+
+// Returns the maximum number of tiles fitting in |availableWidth|, limited to
+// 4.
+NSUInteger numberOfTilesForWidth(CGFloat availableWidth);
+// Returns the spacing between tiles, based on the device.
+CGFloat spacingBetweenTiles();
+
+// iPhone landscape uses a slightly different layout for the doodle and search
+// field frame. Returns the proper frame from |frames| based on orientation,
+// centered in the view of |width|.
+CGRect getOrientationFrame(const CGRect frames[], CGFloat width);
+// Returns x-offset in order to have the tiles centered in a view with a
+// |width|.
+CGFloat centeredTilesMarginForWidth(CGFloat width);
+// Returns the proper frame for the doodle inside a view with a |width|.
+// |logoIsShowing| refers to the Google logo or the doodle.
+CGRect doodleFrame(CGFloat width, BOOL logoIsShowing);
+// Returns the proper frame for the search field inside a view with a |width|.
+// |logoIsShowing| refers to the Google logo or the doodle.
+CGRect searchFieldFrame(CGFloat width, BOOL logoIsShowing);
+// Returns the expected height of the NewTabPageHeaderView inside a view with a
+// |width|. |logoIsShowing| refers to the Google logo or the doodle.
+// |promoCanShow| represents whether a what's new promo can be displayed.
+CGFloat heightForLogoHeader(CGFloat width,
+                            BOOL logoIsShowing,
+                            BOOL promoCanShow);
+
+}  // namespace content_suggestions
+
+#endif  // IOS_CHROME_BROWSER_UI_CONTENT_SUGGESTIONS_CONTENT_SUGGESTIONS_COLLECTION_UTILS_H_