Cleanup namespace usage in Source/web/.

Source/web/WebSearchableFormData.cpp

Index: Source/web/WebSearchableFormData.cpp
diff --git a/Source/web/WebSearchableFormData.cpp b/Source/web/WebSearchableFormData.cpp
index 370064b8c72223b531f224eb3906ba5655119484..262a846c507302c2137346d738f57f7d6183a1e4 100644
--- a/Source/web/WebSearchableFormData.cpp
+++ b/Source/web/WebSearchableFormData.cpp
@@ -44,7 +44,8 @@
 #include "public/web/WebInputElement.h"
 #include "wtf/text/TextEncoding.h"
 
-using namespace blink;
+namespace blink {
+
 using namespace HTMLNames;
 
 namespace {
@@ -231,8 +232,6 @@ bool buildSearchString(const HTMLFormElement* form, Vector<char>* encodedString,
 }
 } // namespace
 
-namespace blink {
-
 WebSearchableFormData::WebSearchableFormData(const WebFormElement& form, const WebInputElement& selectedInputElement)
 {
     RefPtrWillBeRawPtr<HTMLFormElement> formElement = static_cast<PassRefPtrWillBeRawPtr<HTMLFormElement> >(form);