Revert r42156, r42157, r42160. Allow dynamic switching in and out of sidetabs...

chrome/browser/cocoa/tab_strip_controller_unittest.mm

 // 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.
 
 #import <Cocoa/Cocoa.h>
 
 #import "chrome/browser/browser_window.h"
 #include "chrome/browser/cocoa/browser_test_helper.h"
 #import "chrome/browser/cocoa/cocoa_test_helper.h"
 #import "chrome/browser/cocoa/tab_strip_controller.h"
@@ skipping 45 matching lines @@
   virtual bool CanRestoreTab() {
     return true;
   }
   virtual void RestoreTab() {}
 
   virtual bool CanCloseContentsAt(int index) { return true; }
 
   virtual bool CanBookmarkAllTabs() const { return false; }
 
   virtual void BookmarkAllTabs() {}
-  virtual bool UseVerticalTabs() const { return false; }
-  virtual void ToggleUseVerticalTabs() {}
 };
 
 class TabStripControllerTest : public CocoaTest {
  public:
   TabStripControllerTest() {
     Browser* browser = browser_helper_.browser();
     BrowserWindow* browser_window = browser_helper_.CreateBrowserWindow();
     NSWindow* window = browser_window->GetNativeHandle();
     NSView* parent = [window contentView];
     NSRect content_frame = [parent frame];
@@ skipping 62 matching lines @@
   // TODO(pinkerton): Implement http://crbug.com/10899
 }
 
 // Test that changing the number of tabs broadcasts a
 // kTabStripNumberOfTabsChanged notifiction.
 TEST_F(TabStripControllerTest, Notifications) {
   // TODO(pinkerton): Implement http://crbug.com/10899
 }
 
 }  // namespace