Change some ints to size_t to fix warning on win64 builds

chrome/renderer/safe_browsing/threat_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/threat_dom_details.h"
 
 #include <algorithm>
 #include <map>
 #include <unordered_set>
 
@@ skipping 14 matching lines @@
 
 namespace safe_browsing {
 
 // A map for keeping track of the identity of DOM Elements, used to generate
 // unique IDs for each element and lookup elements IDs by parent Element, to
 // maintain proper parent/child relationships.
 // They key is a WebNode from the DOM, which is basically a pointer so can be
 // copied into the map when inserting new elements.
 // The values are indices into the resource vector, and are used to retrieve IPC
 // messages generated by ThreatDOMDetails.
-using ElementToNodeMap = std::map<blink::WebNode, int>;
+using ElementToNodeMap = std::map<blink::WebNode, size_t>;
 
 // This Feature specifies which non-resource HTML Elements to collect based on
 // their tag and attributes. It's a single param containing a comma-separated
 // list of pairs. For example: "tag1,id,tag1,height,tag2,foo" - this will
 // collect elements with tag "tag1" that have attribute "id" or "height" set,
 // and elements of tag "tag2" if they have attribute "foo" set. All tag names
 // and attributes should be lower case.
 const base::Feature kThreatDomDetailsTagAndAttributeFeature{
     "ThreatDomDetailsTagAttributes", base::FEATURE_DISABLED_BY_DEFAULT};
 
@@ skipping 118 matching lines @@
                          element.getAttribute(attr_webstring).ascii())));
       if (child_node.attributes.size() == ThreatDOMDetails::kMaxAttributes) {
         break;
       }
     }
   }
 
   // Update the ID mapping. First generate the ID for the current node.
   // Then, if its parent is available, set the current node's parent ID, and
   // also update the parent's children with the current node's ID.
-  const int child_id = element_to_node_map->size() + 1;
+  const size_t child_id = element_to_node_map->size() + 1;
   child_node.node_id = child_id;
   blink::WebNode cur_parent_element = element.parentNode();
   while (!cur_parent_element.isNull()) {
     if (element_to_node_map->count(cur_parent_element) > 0) {
       SafeBrowsingHostMsg_ThreatDOMDetails_Node* parent_node =
           GetNodeForElement(cur_parent_element, *element_to_node_map,
                             resources);
       child_node.parent_node_id = parent_node->node_id;
       parent_node->child_node_ids.push_back(child_id);
 
@@ skipping 113 matching lines @@
     }
   }
   resources->push_back(details_node);
 }
 
 void ThreatDOMDetails::OnDestruct() {
   delete this;
 }
 
 }  // namespace safe_browsing