Replace SafeBrowsing MAC with downloads over SSL.

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index e1880dc6876d393e0b155e13c4e4021e0131a645..e6425bd4e2902cb06563cd1b268e76da9c18e323 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -1055,10 +1055,7 @@ const char kRestoreLastSession[]            = "restore-last-session";
 
 // URL prefix used by safebrowsing to fetch hash, download data and report
 // malware.
-const char kSbInfoURLPrefix[] = "safebrowsing-info-url-prefix";
-
-// URL prefix used by safebrowsing to get MAC key.
-const char kSbMacKeyURLPrefix[] = "safebrowsing-mackey-url-prefix";
+const char kSbURLPrefix[] = "safebrowsing-url-prefix";
 
 // If present, safebrowsing only performs update when
 // SafeBrowsingProtocolManager::ForceScheduleNextUpdate() is explicitly called.