[Payment] Safe access icon_bitmap->width()

Bug: 1098881
Change-Id: Ic1a9a78731c9cf7c4c939578a966233f4e187a42
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2343144Reviewed-by: Rouslan Solomakhin <rouslan@chromium.org>
Commit-Queue: Sahel Sharify <sahel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#796119}

chrome/browser/ui/views/payments/payment_handler_web_flow_view_controller.cc

@@ -145,7 +145,7 @@ class ReadOnlyOriginView : public views::View {
         views::GridLayout::LEADING, views::GridLayout::CENTER, 1.0,
         views::GridLayout::ColumnSize::kUsePreferred, 0, 0);
     const bool has_icon = icon_bitmap && !icon_bitmap->drawsNothing();
-    float adjusted_width = base::checked_cast<float>(icon_bitmap->width());
+    float adjusted_width = base::checked_cast<float>(has_icon ? icon_bitmap->width() : 0);
     if (has_icon) {
       adjusted_width =
           adjusted_width *