Don't add invalid URLs to MalwareDetails resources_ map.

BUG=173986


Review URL: https://chromiumcodereview.appspot.com/12227003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@182082 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/safe_browsing/malware_details.cc

@@ -129,7 +129,7 @@ void MalwareDetails::AddUrl(const GURL& url,
                             const GURL& parent,
                             const std::string& tagname,
                             const std::vector<GURL>* children) {
-  if (!IsPublicUrl(url))
+  if (!url.is_valid() || !IsPublicUrl(url))
     return;
 
   // Find (or create) the resource for the url.