Add Resource Handler for creating Streams to forward to extensions

content/browser/loader/buffered_resource_handler.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/loader/buffered_resource_handler.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 302 matching lines @@
   }
 
   if (!info->allow_download())
     return true;
 
   bool must_download = MustDownload();
   if (!must_download) {
     if (net::IsSupportedMimeType(mime_type))
       return true;
 
+    scoped_ptr<ResourceHandler> handler(
+        host_->MaybeInterceptAsStream(request_, response_));
+    if (handler)
+      return UseAlternateNextHandler(handler.Pass());
+
 #if defined(ENABLE_PLUGINS)
     bool stale;
     bool has_plugin = HasSupportingPlugin(&stale);
     if (stale) {
       // Refresh the plugins asynchronously.
       PluginServiceImpl::GetInstance()->GetPlugins(
           base::Bind(&BufferedResourceHandler::OnPluginsLoaded,
                      weak_ptr_factory_.GetWeakPtr()));
       *defer = true;
       return true;
@@ skipping 125 matching lines @@
     const std::vector<webkit::WebPluginInfo>& plugins) {
   bool defer = false;
   if (!ProcessResponse(&defer)) {
     controller()->Cancel();
   } else if (!defer) {
     controller()->Resume();
   }
 }
 
 }  // namespace content