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

chrome/browser/download/chrome_download_manager_delegate.cc

Index: chrome/browser/download/chrome_download_manager_delegate.cc
diff --git a/chrome/browser/download/chrome_download_manager_delegate.cc b/chrome/browser/download/chrome_download_manager_delegate.cc
index a21f7b706596c5133d8b63d46564285e2e8517f6..3d609fb2e733224ca63ce2239f094415f6a16373 100644
--- a/chrome/browser/download/chrome_download_manager_delegate.cc
+++ b/chrome/browser/download/chrome_download_manager_delegate.cc
@@ -191,7 +191,8 @@ ChromeDownloadManagerDelegate::~ChromeDownloadManagerDelegate() {
 void ChromeDownloadManagerDelegate::SetDownloadManager(DownloadManager* dm) {
   download_manager_ = dm;
 
-  SafeBrowsingService* sb_service = g_browser_process->safe_browsing_service();
+  safe_browsing::SafeBrowsingService* sb_service =
+      g_browser_process->safe_browsing_service();
   if (sb_service && !profile_->IsOffTheRecord()) {
     // Include this download manager in the set monitored by safe browsing.
     sb_service->AddDownloadManager(dm);
@@ -516,7 +517,8 @@ DownloadProtectionService*
     ChromeDownloadManagerDelegate::GetDownloadProtectionService() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 #if defined(FULL_SAFE_BROWSING)
-  SafeBrowsingService* sb_service = g_browser_process->safe_browsing_service();
+  safe_browsing::SafeBrowsingService* sb_service =
+      g_browser_process->safe_browsing_service();
   if (sb_service && sb_service->download_protection_service() &&
       profile_->GetPrefs()->GetBoolean(prefs::kSafeBrowsingEnabled)) {
     return sb_service->download_protection_service();