Revert 138962

Source/WebCore/platform/network/chromium/ResourceHandle.cpp

 /*
  * Copyright (C) 2009 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 259 matching lines @@
     WebData dataOut;
 
     loader->loadSynchronously(requestIn, responseOut, errorOut, dataOut);
 
     error = errorOut;
     data.clear();
     data.append(dataOut.data(), dataOut.size());
 }
 
 // static
+bool ResourceHandle::willLoadFromCache(ResourceRequest& request, Frame*)
+{
+    // This method is used to determine if a POST request can be repeated from
+    // cache, but you cannot really know until you actually try to read from the
+    // cache. Even if we checked now, something else could come along and wipe
+    // out the cache entry by the time we fetch it.
+    //
+    // So, we always say yes here, to prevent the FrameLoader from initiating a
+    // reload. Then in FrameLoaderClientImpl::dispatchWillSendRequest, we
+    // fix-up the cache policy of the request to force a load from the cache.
+    //
+    ASSERT(request.httpMethod() == "POST");
+    return true;
+}
+
+// static
 void ResourceHandle::cacheMetadata(const ResourceResponse& response, const Vector<char>& data)
 {
     WebKit::Platform::current()->cacheMetadata(response.url(), response.responseTime(), data.data(), data.size());
 }
 
 } // namespace WebCore