1 files changed, 8 insertions, 4 deletions
diff --git a/chromium/chrome/renderer/printing/chrome_print_render_frame_helper_delegate.cc b/chromium/chrome/renderer/printing/chrome_print_render_frame_helper_delegate.cc
index 49086491846..8fd541ac8bf 100644
--- a/chromium/chrome/renderer/printing/chrome_print_render_frame_helper_delegate.cc
+++ b/chromium/chrome/renderer/printing/chrome_print_render_frame_helper_delegate.cc
@@ -43,10 +43,14 @@ blink::WebElement ChromePrintRenderFrameHelperDelegate::GetPdfElement(
       url.host_piece() == extension_misc::kPdfExtensionId;
   if (inside_print_preview || inside_pdf_extension) {
     // <object> with id="plugin" is created in
-    // chrome/browser/resources/pdf/pdf_viewer.js.
-    auto plugin_element = frame->GetDocument().GetElementById("plugin");
-    if (!plugin_element.IsNull()) {
-      return plugin_element;
+    // chrome/browser/resources/pdf/pdf_viewer_base.js.
+    auto viewer_element = frame->GetDocument().GetElementById("viewer");
+    if (!viewer_element.IsNull() && !viewer_element.ShadowRoot().IsNull()) {
+      auto plugin_element =
+          viewer_element.ShadowRoot().QuerySelector("#plugin");
+      if (!plugin_element.IsNull()) {
+        return plugin_element;
+      }
     }
     NOTREACHED();
   }