[Mac] Organize all tab/tab strip files into chrome/browser/ui/cocoa/tabs/....

chrome/browser/ui/cocoa/tab_strip_view.h

-// Copyright (c) 2009 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 CHROME_BROWSER_UI_COCOA_TAB_STRIP_VIEW_H_
-#define CHROME_BROWSER_UI_COCOA_TAB_STRIP_VIEW_H_
-#pragma once
-
-#import <Cocoa/Cocoa.h>
-
-#include "base/scoped_nsobject.h"
-#import "chrome/browser/ui/cocoa/url_drop_target.h"
-
-@class NewTabButton;
-
-// A view class that handles rendering the tab strip and drops of URLS with
-// a positioning locator for drop feedback.
-
-@interface TabStripView : NSView<URLDropTarget> {
- @private
-  NSTimeInterval lastMouseUp_;
-
-  // Handles being a drag-and-drop target.
-  scoped_nsobject<URLDropTargetHandler> dropHandler_;
-
-  // Weak; the following come from the nib.
-  NewTabButton* newTabButton_;
-
-  // Whether the drop-indicator arrow is shown, and if it is, the coordinate of
-  // its tip.
-  BOOL dropArrowShown_;
-  NSPoint dropArrowPosition_;
-}
-
-@property(assign, nonatomic) IBOutlet NewTabButton* newTabButton;
-@property(assign, nonatomic) BOOL dropArrowShown;
-@property(assign, nonatomic) NSPoint dropArrowPosition;
-
-@end
-
-// Protected methods subclasses can override to alter behavior. Clients should
-// not call these directly.
-@interface TabStripView(Protected)
-- (void)drawBottomBorder:(NSRect)bounds;
-- (BOOL)doubleClickMinimizesWindow;
-@end
-
-#endif  // CHROME_BROWSER_UI_COCOA_TAB_STRIP_VIEW_H_