Update HTTPHeaderMap wrappers to use AtomicString type for header values

Source/core/inspector/NetworkResourcesData.h

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  * 1. Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *
@@ skipping 31 matching lines @@
 namespace WebCore {
 
 class Resource;
 class FormData;
 class ResourceResponse;
 class SharedBuffer;
 class TextResourceDecoder;
 
 class XHRReplayData : public RefCounted<XHRReplayData> {
 public:
-    static PassRefPtr<XHRReplayData> create(const String &method, const KURL&, bool async, PassRefPtr<FormData>, bool includeCredentials);
+    static PassRefPtr<XHRReplayData> create(const AtomicString& method, const KURL&, bool async, PassRefPtr<FormData>, bool includeCredentials);
 
-    void addHeader(const AtomicString& key, const String& value);
-    const String& method() const { return m_method; }
+    void addHeader(const AtomicString& key, const AtomicString& value);
+    const AtomicString& method() const { return m_method; }
     const KURL& url() const { return m_url; }
     bool async() const { return m_async; }
     PassRefPtr<FormData> formData() const { return m_formData; }
     const HTTPHeaderMap& headers() const { return m_headers; }
     bool includeCredentials() const { return m_includeCredentials; }
 
 private:
-    XHRReplayData(const String &method, const KURL&, bool async, PassRefPtr<FormData>, bool includeCredentials);
+    XHRReplayData(const AtomicString& method, const KURL&, bool async, PassRefPtr<FormData>, bool includeCredentials);
 
-    String m_method;
+    AtomicString m_method;
     KURL m_url;
     bool m_async;
     RefPtr<FormData> m_formData;
     HTTPHeaderMap m_headers;
     bool m_includeCredentials;
 };
 
 class NetworkResourcesData {
     WTF_MAKE_FAST_ALLOCATED;
 public:
@@ skipping 104 matching lines @@
     ResourceDataMap m_requestIdToResourceDataMap;
     size_t m_contentSize;
     size_t m_maximumResourcesContentSize;
     size_t m_maximumSingleResourceContentSize;
 };
 
 } // namespace WebCore
 
 
 #endif // !defined(NetworkResourcesData_h)