Upstream Chrome on iOS source code [6/11].

ios/chrome/browser/ui/ntp/new_tab_page_view.h

+// Copyright 2012 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_NTP_NEW_TAB_PAGE_VIEW_H_
+#define IOS_CHROME_BROWSER_UI_NTP_NEW_TAB_PAGE_VIEW_H_
+
+#import <UIKit/UIKit.h>
+
+@class NewTabPageBar;
+
+// Container view for the new tab page so that the subviews don't get directly
+// accessed from the view controller.
+@interface NewTabPageView : UIView
+@property(nonatomic, weak, readonly) UIScrollView* scrollView;
+@property(nonatomic, weak, readonly) NewTabPageBar* tabBar;
+
+- (instancetype)initWithFrame:(CGRect)frame
+                andScrollView:(UIScrollView*)scrollView
+                    andTabBar:(NewTabPageBar*)tabBar NS_DESIGNATED_INITIALIZER;
+
+- (instancetype)initWithFrame:(CGRect)frame NS_UNAVAILABLE;
+
+// initWithCoder would only be needed for building this view through .xib files.
+- (instancetype)initWithCoder:(NSCoder*)aDecoder NS_UNAVAILABLE;
+
+// Updates scrollView's content size to accommodate its panels.
+- (void)updateScrollViewContentSize;
+
+// Returns the frame of the item's view within the scrollView's content.
+// |index| must be a valid index for tabBar's |items|.
+- (CGRect)panelFrameForItemAtIndex:(NSUInteger)index;
+
+@end
+
+#endif  // IOS_CHROME_BROWSER_UI_NTP_NEW_TAB_PAGE_VIEW_H_