[ios] Add accessibility label to Infobarbadge button

Bug: 954624
Change-Id: I24cff48293ad2943f42fa5e305274c2c7389c8e6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1597112
Commit-Queue: Chris Lu <thegreenfrog@chromium.org>
Reviewed-by: Sergio Collazos <sczs@chromium.org>
Reviewed-by: Rohit Rao <rohitrao@chromium.org>
Reviewed-by: Stepan Khapugin <stkhapugin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#658388}

ios/chrome/app/strings/ios_strings.grd

@@ -789,6 +789,9 @@ locale.  The strings in this file are specific to iOS.
       <message name="IDS_IOS_ICON_SEARCH" desc="Accessibility label for the search icon [iOS only].">
         Search
       </message>
+      <message name="IDS_IOS_INFOBAR_BADGES_PASSWORD_HINT" desc="The iOS infobar badge item for saving password credentials [Length:Unlimited]">
+        Options to Save Password
+      </message>
       <message name="IDS_IOS_INSPECT_UI_CONSOLE_NOTICE" desc="The message at the top of the debugging page which displays JavaScript console logs [iOS only].">
         Tap the "Start Logging" button to collect future JavaScript console logs and errors from all tabs. Logs will be collected (and stored only in memory) until this page is closed or "Stop Logging" is tapped.
       </message>

ios/chrome/browser/ui/location_bar/location_bar_steady_view.mm

@@ -251,11 +251,19 @@ const CGFloat kButtonTrailingSpacing = 10;
 
   // Setup accessibility.
   _trailingButton.isAccessibilityElement = YES;
+  if (IsInfobarUIRebootEnabled()) {
+    _leadingButton.isAccessibilityElement = YES;
+    _leadingButton.accessibilityLabel =
+        l10n_util::GetNSString(IDS_IOS_INFOBAR_BADGES_PASSWORD_HINT);
+  }
   _locationButton.isAccessibilityElement = YES;
   _locationButton.accessibilityLabel =
       l10n_util::GetNSString(IDS_ACCNAME_LOCATION);
 
   _accessibleElements = [[NSMutableArray alloc] init];
+  if (IsInfobarUIRebootEnabled()) {
+    [_accessibleElements addObject:_leadingButton];
+  }
   [_accessibleElements addObject:_locationButton];
   [_accessibleElements addObject:_trailingButton];