Set TextInputType of CVC prompt to TEXT_INPUT_TYPE_NUMBER.

chrome/browser/ui/views/autofill/card_unmask_prompt_views.cc

Index: chrome/browser/ui/views/autofill/card_unmask_prompt_views.cc
diff --git a/chrome/browser/ui/views/autofill/card_unmask_prompt_views.cc b/chrome/browser/ui/views/autofill/card_unmask_prompt_views.cc
index 3df09eb508502e626b9b3642a8841856df1bcf2e..2d35985af1b6b1267a775c7083a3fdc3f1794506 100644
--- a/chrome/browser/ui/views/autofill/card_unmask_prompt_views.cc
+++ b/chrome/browser/ui/views/autofill/card_unmask_prompt_views.cc
@@ -441,6 +441,7 @@ void CardUnmaskPromptViews::InitIfNecessary() {
       l10n_util::GetStringUTF16(IDS_AUTOFILL_DIALOG_PLACEHOLDER_CVC));
   cvc_input_->set_controller(this);
   cvc_input_->set_default_width_in_chars(8);
+  cvc_input_->SetTextInputType(ui::TextInputType::TEXT_INPUT_TYPE_NUMBER);
   input_row_->AddChildView(cvc_input_);
 
   views::ImageView* cvc_image = new views::ImageView();