diff -r 000000000000 -r 4f2f89ce4247 WebCore/loader/NetscapePlugInStreamLoader.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/loader/NetscapePlugInStreamLoader.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,135 @@
+/*
+ * Copyright (C) 2006 Apple Computer, 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
+ *     documentation and/or other materials provided with the distribution. 
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY 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.
+ */
+
+#include "config.h"
+#include "NetscapePlugInStreamLoader.h"
+
+#include "FrameLoader.h"
+#include "DocumentLoader.h"
+
+namespace WebCore {
+
+NetscapePlugInStreamLoader::NetscapePlugInStreamLoader(Frame* frame, NetscapePlugInStreamLoaderClient* client)
+    : ResourceLoader(frame, true, true)
+    , m_client(client)
+{
+}
+
+NetscapePlugInStreamLoader::~NetscapePlugInStreamLoader()
+{
+}
+
+PassRefPtr<NetscapePlugInStreamLoader> NetscapePlugInStreamLoader::create(Frame* frame, NetscapePlugInStreamLoaderClient* client)
+{
+    return adoptRef(new NetscapePlugInStreamLoader(frame, client));
+}
+
+bool NetscapePlugInStreamLoader::isDone() const
+{
+    return !m_client;
+}
+
+void NetscapePlugInStreamLoader::releaseResources()
+{
+    m_client = 0;
+    ResourceLoader::releaseResources();
+}
+
+void NetscapePlugInStreamLoader::didReceiveResponse(const ResourceResponse& response)
+{
+    RefPtr<NetscapePlugInStreamLoader> protect(this);
+
+    m_client->didReceiveResponse(this, response);
+
+    // Don't continue if the stream is cancelled
+    if (!m_client)
+        return;
+
+    ResourceLoader::didReceiveResponse(response);
+
+    // Don't continue if the stream is cancelled
+    if (!m_client)
+        return;
+
+    if (!response.isHTTP())
+        return;
+    
+    if (m_client->wantsAllStreams())
+        return;
+    
+    if (response.httpStatusCode() < 100 || response.httpStatusCode() >= 400)
+        didCancel(frameLoader()->fileDoesNotExistError(response));
+}
+
+void NetscapePlugInStreamLoader::didReceiveData(const char* data, int length, long long lengthReceived, bool allAtOnce)
+{
+    RefPtr<NetscapePlugInStreamLoader> protect(this);
+
+    m_client->didReceiveData(this, data, length);
+    
+    ResourceLoader::didReceiveData(data, length, lengthReceived, allAtOnce);
+}
+
+void NetscapePlugInStreamLoader::didFinishLoading()
+{
+    RefPtr<NetscapePlugInStreamLoader> protect(this);
+
+    m_documentLoader->removePlugInStreamLoader(this);
+    m_client->didFinishLoading(this);
+    ResourceLoader::didFinishLoading();
+}
+
+void NetscapePlugInStreamLoader::didFail(const ResourceError& error)
+{
+    RefPtr<NetscapePlugInStreamLoader> protect(this);
+
+    m_documentLoader->removePlugInStreamLoader(this);
+    m_client->didFail(this, error);
+    ResourceLoader::didFail(error);
+}
+
+void NetscapePlugInStreamLoader::didCancel(const ResourceError& error)
+{
+    RefPtr<NetscapePlugInStreamLoader> protect(this);
+
+    m_client->didFail(this, error);
+
+    // If calling didFail spins the run loop the stream loader can reach the terminal state.
+    // If that's the case we just return early.
+    if (reachedTerminalState())
+        return;
+    
+    // We need to remove the stream loader after the call to didFail, since didFail can 
+    // spawn a new run loop and if the loader has been removed it won't be deferred when
+    // the document loader is asked to defer loading.
+    m_documentLoader->removePlugInStreamLoader(this);
+
+    ResourceLoader::didCancel(error);
+}
+
+}