Rename WebNodeCollection to WebElementCollection for clarity

public/web/WebInputElement.h

Index: public/web/WebInputElement.h
diff --git a/public/web/WebInputElement.h b/public/web/WebInputElement.h
index 08cfa265d4c5ff7e1e63585d7c41bb5f5f3ac9b6..eb9b2f5047dd9dc3de4ff2251e94ee40dd486ee0 100644
--- a/public/web/WebInputElement.h
+++ b/public/web/WebInputElement.h
@@ -39,7 +39,7 @@ namespace WebCore { class HTMLInputElement; }
 
 namespace blink {
 
-    class WebNodeCollection;
+    class WebElementCollection;
 
     // Provides readonly access to some properties of a DOM input element node.
     class WebInputElement : public WebFormControlElement {
@@ -92,7 +92,7 @@ namespace blink {
         BLINK_EXPORT bool isChecked() const;
         BLINK_EXPORT bool isMultiple() const;
 
-        BLINK_EXPORT WebNodeCollection dataListOptions() const;
+        BLINK_EXPORT WebElementCollection dataListOptions() const;
 
         // Return the localized value for this input type.
         BLINK_EXPORT WebString localizeValue(const WebString&) const;