Add ScopedMacRTL class for Cocoa browser RTL testing

chrome/browser/ui/cocoa/tabs/tab_controller.mm

 // Copyright (c) 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 "chrome/browser/ui/cocoa/tabs/tab_controller.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/i18n/rtl.h"
 #include "base/mac/bundle_locations.h"
 #import "chrome/browser/themes/theme_properties.h"
 #import "chrome/browser/themes/theme_service.h"
-#include "chrome/browser/ui/cocoa/l10n_util.h"
 #import "chrome/browser/ui/cocoa/sprite_view.h"
 #import "chrome/browser/ui/cocoa/tabs/alert_indicator_button_cocoa.h"
 #import "chrome/browser/ui/cocoa/tabs/tab_controller_target.h"
 #import "chrome/browser/ui/cocoa/tabs/tab_view.h"
 #import "chrome/browser/ui/cocoa/themed_window.h"
 #include "content/public/browser/user_metrics.h"
 #import "extensions/common/extension.h"
 #import "ui/base/cocoa/menu_controller.h"
+#import "ui/base/cocoa/rtl_feature.h"
 #include "ui/base/material_design/material_design_controller.h"
 
 @implementation TabController
 
 @synthesize action = action_;
 @synthesize loadingState = loadingState_;
 @synthesize pinned = pinned_;
 @synthesize target = target_;
 @synthesize url = url_;
 
@@ skipping 53 matching lines @@
 
 + (CGFloat)pinnedTabWidth { return 58; }
 
 - (TabView*)tabView {
   DCHECK([[self view] isKindOfClass:[TabView class]]);
   return static_cast<TabView*>([self view]);
 }
 
 - (id)init {
   if ((self = [super init])) {
-    BOOL isRTL = cocoa_l10n_util::ShouldDoExperimentalRTLLayout();
+    BOOL isRTL = ui::ShouldDoExperimentalRTLLayout();
     // Icon.
     const CGFloat iconOrigin =
         isRTL ? kInitialTabWidth - kTabLeadingPadding - kIconSize
               : kTabLeadingPadding;
     NSRect iconFrame =
         NSMakeRect(iconOrigin, kTabElementYOrigin, kIconSize, kIconSize);
     iconView_.reset([[SpriteView alloc] initWithFrame:iconFrame]);
     [iconView_ setAutoresizingMask:isRTL ? NSViewMinXMargin | NSViewMinYMargin
                                          : NSViewMaxXMargin | NSViewMinYMargin];
 
@@ skipping 231 matching lines @@
 }
 
 - (void)setIconImage:(NSImage*)image {
   [self setIconImage:image withToastAnimation:NO];
 }
 
 - (void)setIconImage:(NSImage*)image withToastAnimation:(BOOL)animate {
   if (image == nil) {
     [self setIconView:nil];
   } else {
-    BOOL isRTL = cocoa_l10n_util::ShouldDoExperimentalRTLLayout();
+    BOOL isRTL = ui::ShouldDoExperimentalRTLLayout();
     if (iconView_.get() == nil) {
       base::scoped_nsobject<SpriteView> iconView([[SpriteView alloc] init]);
       [iconView setAutoresizingMask:isRTL
                                         ? NSViewMinXMargin | NSViewMinYMargin
                                         : NSViewMaxXMargin | NSViewMinYMargin];
       [self setIconView:iconView];
     }
 
     [iconView_ setImage:image withToastAnimation:animate];
 
@@ skipping 32 matching lines @@
   [tabView setTitleHidden:[self pinned]];
 
   BOOL newShowCloseButton = [self shouldShowCloseButton];
 
   [closeButton_ setHidden:!newShowCloseButton];
 
   BOOL newShowAlertIndicator = [self shouldShowAlertIndicator];
 
   [alertIndicatorButton_ setHidden:!newShowAlertIndicator];
 
-  BOOL isRTL = cocoa_l10n_util::ShouldDoExperimentalRTLLayout();
+  BOOL isRTL = ui::ShouldDoExperimentalRTLLayout();
 
   if (newShowAlertIndicator) {
     NSRect newFrame = [alertIndicatorButton_ frame];
     newFrame.size = [[alertIndicatorButton_ image] size];
     if ([self pinned]) {
       // Tab is pinned: Position the alert indicator in the center.
       const CGFloat tabWidth = [TabController pinnedTabWidth];
       newFrame.origin.x = std::floor((tabWidth - NSWidth(newFrame)) / 2);
       newFrame.origin.y =
           kTabElementYOrigin - std::floor((NSHeight(newFrame) - kIconSize) / 2);
@@ skipping 72 matching lines @@
         YES : NO;
   }
   return NO;
 }
 
 - (void)maybeStartDrag:(NSEvent*)event forTab:(TabController*)tab {
   [[target_ dragController] maybeStartDrag:event forTab:tab];
 }
 
 @end