Credential manager: Convert strings to URLs early.

public/platform/WebLocalCredential.h

 // Copyright 2014 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 WebLocalCredential_h
 #define WebLocalCredential_h
 
-#include "WebCommon.h"
-#include "WebCredential.h"
-#include "WebString.h"
+#include "public/platform/WebCommon.h"
+#include "public/platform/WebCredential.h"
+#include "public/platform/WebString.h"
+#include "public/platform/WebURL.h"
 
 namespace blink {
 
 class WebLocalCredential : public WebCredential {
 public:
-    BLINK_PLATFORM_EXPORT WebLocalCredential(const WebString& id, const WebString& name, const WebString& avatarURL, const WebString& password);
+    BLINK_PLATFORM_EXPORT WebLocalCredential(const WebString& id, const WebString& name, const WebURL& avatarURL, const WebString& password);
 
     BLINK_PLATFORM_EXPORT void assign(const WebLocalCredential&);
 
     BLINK_PLATFORM_EXPORT WebString password() const;
 };
 
 } // namespace blink
 
 #endif // WebLocalCredential_h