Fix errors caused by unsafe conversions to/from size_t

third_party/WebKit/Source/core/fetch/RawResource.cpp

 /*
  * 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 73 matching lines @@
     ASSERT(request.resourceRequest().frameType() == WebURLRequest::FrameTypeNone);
     ASSERT(request.resourceRequest().requestContext() == WebURLRequest::RequestContextManifest);
     return toRawResource(fetcher->requestResource(request, RawResourceFactory(Resource::Manifest)));
 }
 
 RawResource::RawResource(const ResourceRequest& resourceRequest, Type type)
     : Resource(resourceRequest, type)
 {
 }
 
-void RawResource::appendData(const char* data, unsigned length)
+void RawResource::appendData(const char* data, size_t length)
 {
     Resource::appendData(data, length);
 
     ResourcePtr<RawResource> protect(this);
     ResourceClientWalker<RawResourceClient> w(m_clients);
     while (RawResourceClient* c = w.next())
         c->dataReceived(this, data, length);
 }
 
 void RawResource::didAddClient(ResourceClient* c)
@@ skipping 163 matching lines @@
     for (const auto& header : oldHeaders) {
         AtomicString headerName = header.key;
         if (!shouldIgnoreHeaderForCacheReuse(headerName) && header.value != newHeaders.get(headerName))
             return false;
     }
 
     return true;
 }
 
 } // namespace blink