[Switch Access] Render Space key as 'Space' instead of ' '

Screenshot: https://screenshot.googleplex.com/4miZFhDoWjqF5j6

Fixed: 1158097
AX-Relnotes: N/A.
Change-Id: I13e25d67528f66df200bddae6b90daf1dd424b9b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2588032Reviewed-by: David Tseng <dtseng@chromium.org>
Reviewed-by: Jimmy Gong <jimmyxgong@chromium.org>
Commit-Queue: Jimmy Gong <jimmyxgong@chromium.org>
Auto-Submit: Josiah Krutz <josiahk@google.com>
Cr-Commit-Position: refs/heads/master@{#837299}

chrome/browser/ui/webui/settings/chromeos/switch_access_handler.cc

@@ -9,9 +9,11 @@
 #include "base/bind.h"
 #include "base/no_destructor.h"
 #include "base/values.h"
+#include "chrome/grit/generated_resources.h"
 #include "components/prefs/pref_service.h"
 #include "content/public/browser/web_contents.h"
 #include "ui/aura/window.h"
+#include "ui/base/l10n/l10n_util.h"
 #include "ui/events/event.h"
 #include "ui/events/event_constants.h"
 #include "ui/events/keycodes/dom/dom_code.h"
@@ -41,6 +43,10 @@ std::string GetStringForKeyboardCode(ui::KeyboardCode key_code) {
         dom_key.IsDeadKey()) {
       continue;
     }
+    // Make sure the space key is rendered as "Space" instead of " ".
+    if (key_code == ui::VKEY_SPACE) {
+      return l10n_util::GetStringUTF8(IDS_SETTINGS_SWITCH_ASSIGN_OPTION_SPACE);
+    }
     return ui::KeycodeConverter::DomKeyToKeyString(dom_key);
   }
   return std::string();