[ios clean] Toolbar accessibility and showcase egtests

ios/clean/chrome/browser/ui/toolbar/toolbar_button+factory.mm

Index: ios/clean/chrome/browser/ui/toolbar/toolbar_button+factory.mm
diff --git a/ios/clean/chrome/browser/ui/toolbar/toolbar_button+factory.mm b/ios/clean/chrome/browser/ui/toolbar/toolbar_button+factory.mm
index adfc4ce4f3f39ccbd538b296ffbfed5f6cdbce7b..ba328798b546a7cb8a44965adb11f750c1ccdb2c 100644
--- a/ios/clean/chrome/browser/ui/toolbar/toolbar_button+factory.mm
+++ b/ios/clean/chrome/browser/ui/toolbar/toolbar_button+factory.mm
@@ -4,9 +4,12 @@
 
 #import "ios/clean/chrome/browser/ui/toolbar/toolbar_button+factory.h"
 
+#include "components/strings/grit/components_strings.h"
 #import "ios/chrome/browser/ui/rtl_geometry.h"
 #import "ios/chrome/browser/ui/uikit_ui_util.h"
+#include "ios/chrome/grit/ios_strings.h"
 #include "ios/chrome/grit/ios_theme_resources.h"
+#include "ui/base/l10n/l10n_util.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
@@ -26,6 +29,7 @@
                      imageForDisabledState:
                          NativeReversableImage(
                              IDR_IOS_TOOLBAR_LIGHT_BACK_DISABLED, YES)];
+  backButton.accessibilityLabel = l10n_util::GetNSString(IDS_ACCNAME_BACK);
   return backButton;
 }
 
@@ -40,6 +44,8 @@
                      imageForDisabledState:
                          NativeReversableImage(
                              IDR_IOS_TOOLBAR_LIGHT_FORWARD_DISABLED, YES)];
+  forwardButton.accessibilityLabel =
+      l10n_util::GetNSString(IDS_ACCNAME_FORWARD);
   return forwardButton;
 }
 
@@ -51,6 +57,8 @@
                       NativeImage(IDR_IOS_TOOLBAR_LIGHT_OVERVIEW_PRESSED)
                      imageForDisabledState:
                          NativeImage(IDR_IOS_TOOLBAR_LIGHT_OVERVIEW_DISABLED)];
+  tabSwitcherStripButton.accessibilityLabel =
+      l10n_util::GetNSString(IDS_IOS_TOOLBAR_SHOW_TABS);
   return tabSwitcherStripButton;
 }
 
@@ -60,6 +68,8 @@
                 [UIImage imageNamed:@"tabswitcher_tab_switcher_button"]
                         imageForHighlightedState:nil
                            imageForDisabledState:nil];
+  tabSwitcherGridButton.accessibilityLabel =
+      l10n_util::GetNSString(IDS_IOS_TOOLBAR_SHOW_TAB_GRID);
   return tabSwitcherGridButton;
 }
 
@@ -71,6 +81,8 @@
                       NativeImage(IDR_IOS_TOOLBAR_LIGHT_TOOLS_PRESSED)
                      imageForDisabledState:nil];
   [toolsMenuButton setImageEdgeInsets:UIEdgeInsetsMakeDirected(0, -3, 0, 0)];
+  toolsMenuButton.accessibilityLabel =
+      l10n_util::GetNSString(IDS_IOS_TOOLBAR_SETTINGS);
   return toolsMenuButton;
 }
 
@@ -82,6 +94,8 @@
                       NativeImage(IDR_IOS_TOOLBAR_LIGHT_SHARE_PRESSED)
                      imageForDisabledState:
                          NativeImage(IDR_IOS_TOOLBAR_LIGHT_SHARE_DISABLED)];
+  shareButton.accessibilityLabel =
+      l10n_util::GetNSString(IDS_IOS_TOOLS_MENU_SHARE);
   return shareButton;
 }
 
@@ -96,6 +110,8 @@
                      imageForDisabledState:
                          NativeReversableImage(
                              IDR_IOS_TOOLBAR_LIGHT_RELOAD_DISABLED, YES)];
+  reloadButton.accessibilityLabel =
+      l10n_util::GetNSString(IDS_IOS_ACCNAME_RELOAD);
   return reloadButton;
 }
 
@@ -107,6 +123,7 @@
                       NativeImage(IDR_IOS_TOOLBAR_LIGHT_STOP_PRESSED)
                      imageForDisabledState:
                          NativeImage(IDR_IOS_TOOLBAR_LIGHT_STOP_DISABLED)];
+  stopButton.accessibilityLabel = l10n_util::GetNSString(IDS_IOS_ACCNAME_STOP);
   return stopButton;
 }
 
@@ -117,6 +134,7 @@
                         imageForHighlightedState:
                             NativeImage(IDR_IOS_TOOLBAR_LIGHT_STAR_PRESSED)
                            imageForDisabledState:nil];
+  starButton.accessibilityLabel = l10n_util::GetNSString(IDS_TOOLTIP_STAR);
   return starButton;
 }