Add support for setting password value gated on user's gesture in a page

public/web/WebInputElement.h

Index: public/web/WebInputElement.h
diff --git a/public/web/WebInputElement.h b/public/web/WebInputElement.h
index e9965cf53feec17e4694cf361c55dbba1bbf0aa1..59d325ce6c8f0b5b7f44e2b1aac8c43c00b5985d 100644
--- a/public/web/WebInputElement.h
+++ b/public/web/WebInputElement.h
@@ -101,6 +101,9 @@ namespace blink {
         // If true, forces the text of the element to be visible.
         BLINK_EXPORT void setShouldRevealPassword(bool value);
 
+        // Saves the value to be set as soon as the page registered a user gesture since the last load.
+        BLINK_EXPORT void setValueAfterUserGesture(const WebString&);
+
 #if BLINK_IMPLEMENTATION
         WebInputElement(const WTF::PassRefPtr<WebCore::HTMLInputElement>&);
         WebInputElement& operator=(const WTF::PassRefPtr<WebCore::HTMLInputElement>&);