Moves overscroll code out of the ios_internal namespace.

ios/chrome/browser/ui/overscroll_actions/overscroll_actions_view.h

 // Copyright 2015 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_OVERSCROLL_ACTIONS_OVERSCROLL_ACTIONS_VIEW_H_
 #define IOS_CHROME_BROWSER_UI_OVERSCROLL_ACTIONS_OVERSCROLL_ACTIONS_VIEW_H_
 
 #import <UIKit/UIKit.h>
 
-namespace ios_internal {
 // Describes the current Index of an action in the OverScrollActionsView.
 enum class OverscrollAction {
   NONE,       // No action
   NEW_TAB,    // New tab action
   REFRESH,    // Refresh action
   CLOSE_TAB,  // Close tab action
 };
 
 // Describes the style of the overscroll action UI.
 enum class OverscrollStyle {
   NTP_NON_INCOGNITO,           // UI to fit the NTP in non incognito.
   NTP_INCOGNITO,               // UI to fit the NTP in incognito.
   REGULAR_PAGE_NON_INCOGNITO,  // UI to fit regular pages in non incognito.
   REGULAR_PAGE_INCOGNITO       // UI to fit regular pages in incognito.
 };
 
-}  // namespace ios_internal
-
 @class OverscrollActionsView;
 
 @protocol OverscrollActionsViewDelegate
 
 - (void)overscrollActionsViewDidTapTriggerAction:
     (OverscrollActionsView*)overscrollActionsView;
 
 @end
 
 // This view displays the actions of the OverscrollActionsController.
 // How actions are displayed depends on the vertical and horizontal offsets.
 @interface OverscrollActionsView : UIView
 
 // The currently selected action.
-@property(nonatomic, assign, readonly)
-    ios_internal::OverscrollAction selectedAction;
+@property(nonatomic, assign, readonly) OverscrollAction selectedAction;
 // The view displayed has the background of the overscroll actions view.
 @property(nonatomic, retain, readonly) UIView* backgroundView;
 // Whether cropping is set on the selection circle (true by default).
 @property(nonatomic, assign) BOOL selectionCroppingEnabled;
 
 @property(nonatomic, assign) id<OverscrollActionsViewDelegate> delegate;
 
 // Add a snapshot view on top of the background image view. The previous
 // snapshot view if any will be removed.
 - (void)addSnapshotView:(UIView*)view;
 
 // Called to indicate that a new pull gesture has started.
 - (void)pullStarted;
 
 // Vertical offset [0, yOffset].
 // This offset is set to the top inset of the scrollView managed by the
 // OverscrollActionsController.
 - (void)updateWithVerticalOffset:(CGFloat)offset;
 
 // Horizontal offset [-1,1].
 // This offset is set by the OverscrollActionsController and is used to display
 // the action selection circle.
 - (void)updateWithHorizontalOffset:(CGFloat)offset;
 
 // This starts an "ink response" like animation typically triggered when an
 // action has been selected.
 - (void)displayActionAnimation;
 
 // Sets the style of the overscroll action UI.
-- (void)setStyle:(ios_internal::OverscrollStyle)style;
+- (void)setStyle:(OverscrollStyle)style;
 
 @end
 
 #endif  // IOS_CHROME_BROWSER_UI_OVERSCROLL_ACTIONS_OVERSCROLL_ACTIONS_VIEW_H_