Replace SafeBrowsing MAC with downloads over SSL.

chrome/browser/safe_browsing/safe_browsing_util.h

Index: chrome/browser/safe_browsing/safe_browsing_util.h
diff --git a/chrome/browser/safe_browsing/safe_browsing_util.h b/chrome/browser/safe_browsing/safe_browsing_util.h
index 577ffab53f811139dec30867cbbac2f2ea6c828d..4fcd229a269dbe113fa57d27351f840e0c497d09 100644
--- a/chrome/browser/safe_browsing/safe_browsing_util.h
+++ b/chrome/browser/safe_browsing/safe_browsing_util.h
@@ -23,10 +23,9 @@ class SBEntry;
 // A truncated hash's type.
 typedef int32 SBPrefix;
 
-// Container for holding a chunk URL and the MAC of the contents of the URL.
+// Container for holding a chunk URL and the list it belongs to.
 struct ChunkUrl {
   std::string url;
-  std::string mac;
   std::string list_name;
 };
 
@@ -319,12 +318,6 @@ bool IsMalwareList(const std::string& list_name);
 bool IsBadbinurlList(const std::string& list_name);
 bool IsBadbinhashList(const std::string& list_name);
 
-// Returns 'true' if 'mac' can be verified using 'key' and 'data'.
-bool VerifyMAC(const std::string& key,
-               const std::string& mac,
-               const char* data,
-               int data_length);
-
 GURL GeneratePhishingReportUrl(const std::string& report_page,
                                const std::string& url_to_report,
                                bool is_client_side_detection);