Update safe_browsing code to use WebElementCollection instead of WebNodeCollection

chrome/renderer/safe_browsing/malware_dom_details.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/renderer/safe_browsing/malware_dom_details.h"
 
 #include "base/compiler_specific.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/safe_browsing/safebrowsing_messages.h"
 #include "content/public/renderer/render_view.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 #include "third_party/WebKit/public/web/WebDocument.h"
 #include "third_party/WebKit/public/web/WebElement.h"
+#include "third_party/WebKit/public/web/WebElementCollection.h"
 #include "third_party/WebKit/public/web/WebFrame.h"
-#include "third_party/WebKit/public/web/WebNodeCollection.h"
 #include "third_party/WebKit/public/web/WebView.h"
 
 namespace safe_browsing {
 
 // An upper limit on the number of nodes we collect.
 uint32 MalwareDOMDetails::kMaxNodes = 500;
 
 // static
 MalwareDOMDetails* MalwareDOMDetails::Create(content::RenderView* render_view) {
   // Private constructor and public static Create() method to facilitate
@@ skipping 38 matching lines @@
     DCHECK(frame);
     SafeBrowsingHostMsg_MalwareDOMDetails_Node details_node;
     blink::WebDocument document = frame->document();
     details_node.url = GURL(document.url());
     if (document.isNull()) {
       // Nothing in this frame, move on to the next one.
       resources->push_back(details_node);
       continue;
     }
 
-    blink::WebNodeCollection elements = document.all();
-    blink::WebNode cur_node = elements.firstItem();
-    for (; !cur_node.isNull(); cur_node = elements.nextItem()) {
-      if (!cur_node.isElementNode()) {
-        continue;
-      }
-      blink::WebElement element = cur_node.to<blink::WebElement>();
+    blink::WebElementCollection elements = document.all();
+    blink::WebElement element = elements.firstItem();
+    for (; !element.isNull(); element = elements.nextItem()) {
       if (element.hasTagName("iframe") || element.hasTagName("frame") ||
           element.hasTagName("embed") || element.hasTagName("script")) {
         HandleElement(element, &details_node, resources);
         if (resources->size() >= kMaxNodes) {
           // We have reached kMaxNodes, exit early.
           resources->push_back(details_node);
           return;
         }
       }
     }
@@ skipping 21 matching lines @@
 
   // Create the child node.
   SafeBrowsingHostMsg_MalwareDOMDetails_Node child_node;
   child_node.url = child_url;
   child_node.tag_name = element.tagName().utf8();
   child_node.parent = parent_node->url;
   resources->push_back(child_node);
 }
 
 }  // namespace safe_browsing