Move code in components/safe_browsing_db and chrome/browser/s_b/ under the safe_browsing namespace.

chrome/browser/download/download_commands.cc

Index: chrome/browser/download/download_commands.cc
diff --git a/chrome/browser/download/download_commands.cc b/chrome/browser/download/download_commands.cc
index abc6a05ee7c0c41d558debe5cb1da3590c0fe719..144613bae895cfd93a9ec42a2bf67704e7a9b1ed 100644
--- a/chrome/browser/download/download_commands.cc
+++ b/chrome/browser/download/download_commands.cc
@@ -189,7 +189,7 @@ void DownloadCommands::ExecuteCommand(Command command) {
 #if defined(FULL_SAFE_BROWSING)
       using safe_browsing::DownloadProtectionService;
 
-      SafeBrowsingService* sb_service =
+      safe_browsing::SafeBrowsingService* sb_service =
           g_browser_process->safe_browsing_service();
       DownloadProtectionService* protection_service =
           (sb_service ? sb_service->download_protection_service() : nullptr);