Fix errors caused by unsafe conversions to/from size_t

third_party/WebKit/Source/core/loader/DocumentThreadableLoader.h

 /*
  * Copyright (C) 2009, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013, Intel Corporation
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 71 matching lines @@
         void notifyFinished(Resource*) override;
 
         String debugName() const override { return "DocumentThreadableLoader"; }
 
         // RawResourceClient
         //
         // |this| may be dead after calling these methods.
         void dataSent(Resource*, unsigned long long bytesSent, unsigned long long totalBytesToBeSent) override;
         void responseReceived(Resource*, const ResourceResponse&, PassOwnPtr<WebDataConsumerHandle>) override;
         void setSerializedCachedMetadata(Resource*, const char*, size_t) override;
-        void dataReceived(Resource*, const char* data, unsigned dataLength) override;
+        void dataReceived(Resource*, const char* data, size_t dataLength) override;
         void redirectReceived(Resource*, ResourceRequest&, const ResourceResponse&) override;
         void dataDownloaded(Resource*, int) override;
         void didReceiveResourceTiming(Resource*, const ResourceTimingInfo&) override;
 
         // |this| may be dead after calling this method in async mode.
         void cancelWithError(const ResourceError&);
 
         // Notify Inspector and log to console about resource response. Use
         // this method if response is not going to be finished normally.
         void reportResponseReceived(unsigned long identifier, const ResourceResponse&);
 
         // Methods containing code to handle resource fetch results which are
         // common to both sync and async mode.
         //
         // |this| may be dead after calling these method in async mode.
         void handleResponse(unsigned long identifier, const ResourceResponse&, PassOwnPtr<WebDataConsumerHandle>);
-        void handleReceivedData(const char* data, unsigned dataLength);
+        void handleReceivedData(const char* data, size_t dataLength);
         void handleSuccessfulFinish(unsigned long identifier, double finishTime);
 
         // |this| may be dead after calling this method.
         void didTimeout(Timer<DocumentThreadableLoader>*);
         // Calls the appropriate loading method according to policy and data
         // about origin. Only for handling the initial load (including fallback
         // after consulting ServiceWorker).
         //
         // |this| may be dead after calling this method in async mode.
         void dispatchInitialRequest(const ResourceRequest&);
@@ skipping 76 matching lines @@
         // But this value is not the max number of total redirects allowed,
         // because same-origin redirects are not counted here.
         int m_corsRedirectLimit;
 
         const WebURLRequest::FetchRedirectMode m_redirectMode;
     };
 
 } // namespace blink
 
 #endif // DocumentThreadableLoader_h