a11y: Add a11y information to views::Tab and manually ignore its a11y children.

chrome/browser/ui/cocoa/tabs/tab_view.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_view.h"
 
 #include "base/i18n/rtl.h"
 #include "base/logging.h"
 #include "base/mac/sdk_forward_declarations.h"
 #include "base/strings/sys_string_conversions.h"
 #include "chrome/browser/themes/theme_properties.h"
 #include "chrome/browser/themes/theme_service.h"
 #import "chrome/browser/ui/cocoa/tabs/alert_indicator_button_cocoa.h"
 #import "chrome/browser/ui/cocoa/tabs/tab_controller.h"
 #import "chrome/browser/ui/cocoa/tabs/tab_window_controller.h"
 #import "chrome/browser/ui/cocoa/themed_window.h"
 #import "chrome/browser/ui/cocoa/view_id_util.h"
-#include "chrome/grit/generated_resources.h"
 #include "chrome/grit/theme_resources.h"
 #include "skia/ext/skia_utils_mac.h"
 #import "third_party/google_toolbox_for_mac/src/AppKit/GTMFadeTruncatingTextFieldCell.h"
 #import "ui/base/cocoa/nsgraphics_context_additions.h"
 #import "ui/base/cocoa/nsview_additions.h"
 #include "ui/base/cocoa/three_part_image.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/material_design/material_design_controller.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/scoped_ns_graphics_context_save_gstate_mac.h"
+#include "ui/strings/grit/ui_strings.h"
 
 namespace {
 
 // The color of the icons in dark mode theme.
 const SkColor kDarkModeIconColor = SkColorSetARGB(0xFF, 0xC4, 0xC4, 0xC4);
 
 }  // namespace
 
 // The amount of time in seconds during which each type of glow increases, holds
 // steady, and decreases, respectively.
@@ skipping 713 matching lines @@
                                     NSAccessibilityValueChangedNotification);
   } else {
     [super accessibilityPerformAction:action];
   }
 }
 
 - (id)accessibilityAttributeValue:(NSString*)attribute {
   if ([attribute isEqual:NSAccessibilityRoleAttribute])
     return NSAccessibilityRadioButtonRole;
   if ([attribute isEqual:NSAccessibilityRoleDescriptionAttribute])
-    return l10n_util::GetNSStringWithFixup(IDS_ACCNAME_TAB);
+    return l10n_util::GetNSStringWithFixup(IDS_ACCNAME_TAB_ROLE_DESCRIPTION);
   if ([attribute isEqual:NSAccessibilityTitleAttribute])
     return [controller_ title];
   if ([attribute isEqual:NSAccessibilityValueAttribute])
     return [NSNumber numberWithInt:[controller_ selected]];
   if ([attribute isEqual:NSAccessibilityEnabledAttribute])
     return [NSNumber numberWithBool:YES];
 
   return [super accessibilityAttributeValue:attribute];
 }
 
@@ skipping 247 matching lines @@
 
 // For "Increase Contrast" mode, use flat black instead of semitransparent black
 // for the tab edge stroke.
 + (void)setTabEdgeStrokeColor {
   static NSColor* heavyStrokeColor =
       [skia::SkColorToSRGBNSColor(SK_ColorBLACK) retain];
   [heavyStrokeColor set];
 }
 
 @end