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

chrome/browser/safe_browsing/safe_browsing_test.cc

Index: chrome/browser/safe_browsing/safe_browsing_test.cc
diff --git a/chrome/browser/safe_browsing/safe_browsing_test.cc b/chrome/browser/safe_browsing/safe_browsing_test.cc
index e50cd25f9a4599ca1a702b67c331c30f1d188ba8..4952d779e1a48111300f579ea03b6e18f12918de 100644
--- a/chrome/browser/safe_browsing/safe_browsing_test.cc
+++ b/chrome/browser/safe_browsing/safe_browsing_test.cc
@@ -148,6 +148,8 @@ class TestSafeBrowsingServiceFactory : public SafeBrowsingServiceFactory {
 
 }  // namespace
 
+namespace safe_browsing {
+
 // This starts the browser and keeps status of states related to SafeBrowsing.
 class SafeBrowsingServerTest : public InProcessBrowserTest {
  public:
@@ -578,3 +580,5 @@ IN_PROC_BROWSER_TEST_F(SafeBrowsingServerTest,
             safe_browsing_helper->VerifyTestComplete(test_server(), last_step));
   EXPECT_EQ("yes", safe_browsing_helper->response_data());
 }
+
+}  // namespace safe_browsing