Removing iPad Tab Switcher experimental flag.

ios/chrome/browser/ui/no_tabs/no_tabs_toolbar_controller.mm

Index: ios/chrome/browser/ui/no_tabs/no_tabs_toolbar_controller.mm
diff --git a/ios/chrome/browser/ui/no_tabs/no_tabs_toolbar_controller.mm b/ios/chrome/browser/ui/no_tabs/no_tabs_toolbar_controller.mm
deleted file mode 100644
index c4e6a579db502c6ac1c40355218b7b9841141bf8..0000000000000000000000000000000000000000
--- a/ios/chrome/browser/ui/no_tabs/no_tabs_toolbar_controller.mm
+++ /dev/null
@@ -1,115 +0,0 @@
-// 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.
-
-#import "ios/chrome/browser/ui/no_tabs/no_tabs_toolbar_controller.h"
-
-#include "base/mac/scoped_nsobject.h"
-#import "ios/chrome/browser/ui/commands/UIKit+ChromeExecuteCommand.h"
-#include "ios/chrome/browser/ui/commands/ios_command_ids.h"
-#import "ios/chrome/browser/ui/rtl_geometry.h"
-#include "ios/chrome/browser/ui/toolbar/new_tab_button.h"
-#import "ios/chrome/browser/ui/uikit_ui_util.h"
-#import "ui/gfx/ios/uikit_util.h"
-
-namespace {
-
-const CGFloat kNewTabButtonLeading = 8;
-const CGFloat kModeToggleWidth = 34;
-const CGFloat kModeToggleHeight = 38;
-
-}  // end namespace
-
-@interface NoTabsToolbarController () {
-  // Top-level view for notabs-specific content.
-  base::scoped_nsobject<UIView> _noTabsToolbar;
-  base::scoped_nsobject<UIButton> _buttonNewTab;
-  base::scoped_nsobject<UIButton> _modeToggleButton;
-}
-
-@end
-
-@implementation NoTabsToolbarController
-
-- (instancetype)initWithNoTabs {
-  self = [super initWithStyle:ToolbarControllerStyleDarkMode];
-  if (self) {
-    _noTabsToolbar.reset([[UIView alloc] initWithFrame:self.view.bounds]);
-    [_noTabsToolbar setBackgroundColor:[UIColor clearColor]];
-    [_noTabsToolbar setAutoresizingMask:UIViewAutoresizingFlexibleWidth |
-                                        UIViewAutoresizingFlexibleBottomMargin];
-
-    // Resize the container to match the available area.
-    // Do this before the layouts of subviews are computed.
-    [_noTabsToolbar setFrame:[self specificControlsArea]];
-
-    CGFloat boundingHeight = [_noTabsToolbar bounds].size.height;
-    CGFloat boundingWidth = [_noTabsToolbar bounds].size.width;
-    LayoutRect newTabButtonLayout = LayoutRectMake(
-        kNewTabButtonLeading, boundingWidth, 0, boundingHeight, boundingHeight);
-    _buttonNewTab.reset([[NewTabButton alloc]
-        initWithFrame:LayoutRectGetRect(newTabButtonLayout)]);
-    [_buttonNewTab
-        setAutoresizingMask:UIViewAutoresizingFlexibleTrailingMargin()];
-
-    LayoutRect modeToggleButtonLayout = LayoutRectMake(
-        boundingWidth - kModeToggleWidth - boundingHeight, boundingWidth,
-        ui::AlignValueToUpperPixel((boundingHeight - kModeToggleHeight) / 2),
-        kModeToggleWidth, kModeToggleHeight);
-
-    _modeToggleButton.reset([[UIButton alloc]
-        initWithFrame:LayoutRectGetRect(modeToggleButtonLayout)]);
-    [_modeToggleButton setHidden:YES];
-    [_modeToggleButton
-        setAutoresizingMask:UIViewAutoresizingFlexibleLeadingMargin()];
-    [_modeToggleButton setImageEdgeInsets:UIEdgeInsetsMakeDirected(7, 5, 7, 5)];
-    [_modeToggleButton setImage:[UIImage imageNamed:@"tabstrip_switch"]
-                       forState:UIControlStateNormal];
-    [_modeToggleButton setTag:IDC_SWITCH_BROWSER_MODES];
-    [_modeToggleButton addTarget:self
-                          action:@selector(recordUserMetrics:)
-                forControlEvents:UIControlEventTouchUpInside];
-    [_modeToggleButton addTarget:_modeToggleButton
-                          action:@selector(chromeExecuteCommand:)
-                forControlEvents:UIControlEventTouchUpInside];
-
-    // The toolbar background is not supposed to show in the no-tabs UI.
-    [self.backgroundView setHidden:YES];
-
-    [self.view addSubview:_noTabsToolbar];
-    [_noTabsToolbar addSubview:_buttonNewTab];
-    [_noTabsToolbar addSubview:_modeToggleButton];
-
-    self.shadowView.hidden = YES;
-  }
-  return self;
-}
-
-// Applies the given transform to this toolbar's controls.
-- (void)setControlsTransform:(CGAffineTransform)transform {
-  [self setStandardControlsTransform:transform];
-  [_buttonNewTab setTransform:transform];
-  [_modeToggleButton setTransform:transform];
-}
-
-// Shows or hides the mode toggle switch.
-- (void)setHasModeToggleSwitch:(BOOL)hasModeToggle {
-  [_modeToggleButton setHidden:!hasModeToggle];
-}
-
-// Called when a button is pressed.
-- (void)recordUserMetrics:(id)sender {
-  if (sender == _buttonNewTab.get()) {
-    // TODO(rohitrao): Record metrics. http://crbug.com/437418
-  } else if (sender == _modeToggleButton.get()) {
-    // TODO(rohitrao): Record metrics. http://crbug.com/437418
-  } else {
-    [super recordUserMetrics:sender];
-  }
-}
-
-- (UIButton*)modeToggleButton {
-  return _modeToggleButton;
-}
-
-@end