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

components/safe_browsing_db/util.h

Index: components/safe_browsing_db/util.h
diff --git a/components/safe_browsing_db/util.h b/components/safe_browsing_db/util.h
index 666e0815f5cf81a137705e5997a7ea243e9fc8c6..994802001c5c1a04f200c8627f0695071453758d 100644
--- a/components/safe_browsing_db/util.h
+++ b/components/safe_browsing_db/util.h
@@ -15,9 +15,10 @@
 #include "base/strings/string_piece.h"
 #include "base/time/time.h"
 
-
 class GURL;
 
+namespace safe_browsing {
+
 // Different types of threats that SafeBrowsing protects against.
 enum SBThreatType {
   // No threat at all.
@@ -48,7 +49,6 @@ enum SBThreatType {
 };
 
 
-// TODO(vakh): Move all these declarations under safe_browsing namespace.
 // A truncated hash's type.
 typedef uint32 SBPrefix;
 
@@ -76,9 +76,6 @@ struct SBCachedFullHashResult {
   std::vector<SBFullHashResult> full_hashes;
 };
 
-
-namespace safe_browsing {
-
 // SafeBrowsing list names.
 extern const char kMalwareList[];
 extern const char kPhishingList[];