Cleanup namespace usage in Source/binding and Source/web

Source/bindings/modules/v8/IDBBindingUtilities.h

Index: Source/bindings/modules/v8/IDBBindingUtilities.h
diff --git a/Source/bindings/modules/v8/IDBBindingUtilities.h b/Source/bindings/modules/v8/IDBBindingUtilities.h
index 0f193c6c2d75028f0f2c8b790fdbb2f4bcabd2ac..37e3bbe9a1ca63165dc8b3b663cf41930d47a15c 100644
--- a/Source/bindings/modules/v8/IDBBindingUtilities.h
+++ b/Source/bindings/modules/v8/IDBBindingUtilities.h
@@ -33,18 +33,13 @@
 
 namespace blink {
 
-class WebBlobInfo;
-
-}
-
-namespace blink {
-
 class IDBAny;
 class IDBKey;
 class IDBKeyPath;
 class IDBKeyRange;
 class SerializedScriptValue;
 class SharedBuffer;
+class WebBlobInfo;
 
 // Exposed for unit testing:
 bool injectV8KeyIntoV8Value(v8::Isolate*, v8::Handle<v8::Value> key, v8::Handle<v8::Value>, const IDBKeyPath&);