1 files changed, 7 insertions, 7 deletions

diff --git a/chrome/browser/safe_browsing/malware_details.cc b/chrome/browser/safe_browsing/malware_details.cc
index 41cf690..7eb336d 100644
--- a/chrome/browser/safe_browsing/malware_details.cc
+++ b/chrome/browser/safe_browsing/malware_details.cc
@@ -178,16 +178,16 @@ void MalwareDetails::StartCollection() {
   }
 
   // Add the nodes, starting from the page url.
-  AddUrl(page_url, GURL(), "", NULL);
+  AddUrl(page_url, GURL(), std::string(), NULL);
 
   // Add the resource_url and its original url, if non-empty and different.
   if (!resource_.original_url.is_empty() &&
       resource_.url != resource_.original_url) {
     // Add original_url, as the parent of resource_url.
-    AddUrl(resource_.original_url, GURL(), "", NULL);
-    AddUrl(resource_.url, resource_.original_url, "", NULL);
+    AddUrl(resource_.original_url, GURL(), std::string(), NULL);
+    AddUrl(resource_.url, resource_.original_url, std::string(), NULL);
   } else {
-    AddUrl(resource_.url, GURL(), "", NULL);
+    AddUrl(resource_.url, GURL(), std::string(), NULL);
   }
 
   // Add the redirect urls, if non-empty. The redirect urls do not include the
@@ -201,13 +201,13 @@ void MalwareDetails::StartCollection() {
   }
   // Set the previous redirect url as the parent of the next one
   for (unsigned int i = 0; i < resource_.redirect_urls.size(); ++i) {
-    AddUrl(resource_.redirect_urls[i], parent_url, "", NULL);
+    AddUrl(resource_.redirect_urls[i], parent_url, std::string(), NULL);
     parent_url = resource_.redirect_urls[i];
   }
 
   // Add the referrer url.
   if (nav_entry && !referrer_url.is_empty()) {
-    AddUrl(referrer_url, GURL(), "", NULL);
+    AddUrl(referrer_url, GURL(), std::string(), NULL);
   }
 
   // Get URLs of frames, scripts etc from the DOM.
@@ -287,7 +287,7 @@ void MalwareDetails::OnRedirectionCollectionReady() {
 void MalwareDetails::AddRedirectUrlList(const std::vector<GURL>& urls) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   for (size_t i = 0; i < urls.size()-1; ++i) {
-    AddUrl(urls[i], urls[i+1], "", NULL);
+    AddUrl(urls[i], urls[i + 1], std::string(), NULL);
   }
 }