Allow cache reuse of some requests with Cache-Control headers

Source/platform/network/ResourceRequest.h

 /*
  * Copyright (C) 2003, 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
  * Copyright (C) 2009, 2012 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 12 matching lines @@
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef ResourceRequest_h
 #define ResourceRequest_h
 
 #include "platform/network/FormData.h"
 #include "platform/network/HTTPHeaderMap.h"
+#include "platform/network/HTTPParsers.h"
 #include "platform/network/ResourceLoadPriority.h"
 #include "platform/weborigin/KURL.h"
 #include "platform/weborigin/Referrer.h"
 #include "wtf/OwnPtr.h"
 
 namespace WebCore {
 
 enum ResourceRequestCachePolicy {
     UseProtocolCachePolicy, // normal load
     ReloadIgnoringCacheData, // reload
@@ skipping 159 matching lines @@
     void setDownloadToFile(bool downloadToFile) { m_downloadToFile = downloadToFile; }
 
     // Extra data associated with this request.
     ExtraData* extraData() const { return m_extraData.get(); }
     void setExtraData(PassRefPtr<ExtraData> extraData) { m_extraData = extraData; }
 
     // What this request is for.
     TargetType targetType() const { return m_targetType; }
     void setTargetType(TargetType type) { m_targetType = type; }
 
+    bool cacheControlContainsNoCache();
+    bool cacheControlContainsNoStore();
+    bool hasCacheValidatorFields();
+
     static double defaultTimeoutInterval(); // May return 0 when using platform default.
     static void setDefaultTimeoutInterval(double);
 
     static bool compare(const ResourceRequest&, const ResourceRequest&);
 
 private:
     void initialize(const KURL& url, ResourceRequestCachePolicy cachePolicy);
 
     KURL m_url;
     ResourceRequestCachePolicy m_cachePolicy;
     double m_timeoutInterval; // 0 is a magic value for platform default on platforms that have one.
     KURL m_firstPartyForCookies;
     AtomicString m_httpMethod;
     HTTPHeaderMap m_httpHeaderFields;
     RefPtr<FormData> m_httpBody;
     bool m_allowStoredCredentials : 1;
     bool m_reportUploadProgress : 1;
     bool m_reportLoadTiming : 1;
     bool m_reportRawHeaders : 1;
     bool m_hasUserGesture : 1;
     bool m_downloadToFile : 1;
     ResourceLoadPriority m_priority;
     int m_intraPriorityValue;
     int m_requestorID;
     int m_requestorProcessID;
     int m_appCacheHostID;
     RefPtr<ExtraData> m_extraData;
     TargetType m_targetType;
     ReferrerPolicy m_referrerPolicy;
+    CacheControlHeader m_cacheControlHeader;
 
     static double s_defaultTimeoutInterval;
 };
 
 bool equalIgnoringHeaderFields(const ResourceRequest&, const ResourceRequest&);
 
 inline bool operator==(const ResourceRequest& a, const ResourceRequest& b) { return ResourceRequest::compare(a, b); }
 inline bool operator!=(ResourceRequest& a, const ResourceRequest& b) { return !(a == b); }
 
 struct CrossThreadResourceRequestData {
@@ skipping 20 matching lines @@
     int m_appCacheHostID;
     ResourceRequest::TargetType m_targetType;
     ReferrerPolicy m_referrerPolicy;
 };
 
 unsigned initializeMaximumHTTPConnectionCountPerHost();
 
 } // namespace WebCore
 
 #endif // ResourceRequest_h