Fix unit test style in Source/platform/, part 2.

Source/platform/weborigin/DatabaseIdentifierTest.cpp

Index: Source/platform/weborigin/DatabaseIdentifierTest.cpp
diff --git a/Source/platform/weborigin/DatabaseIdentifierTest.cpp b/Source/platform/weborigin/DatabaseIdentifierTest.cpp
index 928eb8bd0c0f7e686032e95dead8c032ae71dc43..0d96b20f03adb09eddcb2b84409e681f8082c3f9 100644
--- a/Source/platform/weborigin/DatabaseIdentifierTest.cpp
+++ b/Source/platform/weborigin/DatabaseIdentifierTest.cpp
@@ -34,14 +34,9 @@
 #include "platform/weborigin/KURL.h"
 #include "platform/weborigin/SecurityOrigin.h"
 #include "wtf/testing/WTFTestHelpers.h"
-
 #include <gtest/gtest.h>
 
-using blink::SecurityOrigin;
-using blink::createDatabaseIdentifierFromSecurityOrigin;
-using blink::createSecurityOriginFromDatabaseIdentifier;
-
-namespace {
+namespace blink {
 
 TEST(DatabaseIdentifierTest, CreateIdentifierFromSecurityOrigin)
 {
@@ -258,5 +253,4 @@ TEST(DatabaseIdentifierTest, CreateSecurityOriginFromIdentifier)
     }
 }
 
-} // namespace
-
+} // namespace blink