Use a direct include of strings headers in webkit/, part 1.

webkit/glue/websocketstreamhandle_delegate.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef WEBKIT_GLUE_WEBSOCKETSTREAMHANDLE_DELEGATE_H_
 #define WEBKIT_GLUE_WEBSOCKETSTREAMHANDLE_DELEGATE_H_
 
-#include "base/string16.h"
+#include "base/strings/string16.h"
 
 class GURL;
 
 namespace WebKit {
 class WebSocketStreamHandle;
 }
 
 namespace webkit_glue {
 
 class WebSocketStreamHandleDelegate {
@@ skipping 16 matching lines @@
                        int error_code,
                        const string16& error_msg) {}
 
  protected:
   virtual ~WebSocketStreamHandleDelegate() {}
 };
 
 }  // namespace webkit_glue
 
 #endif  // WEBKIT_GLUE_WEBSOCKETSTREAMHANDLE_DELEGATE_H_