Forward MIME types to BrowserPlugin when a viewer is specified.

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"
 #include "base/metrics/histogram.h"
 #include "base/strings/string_util.h"
 #include "content/browser/download/download_resource_handler.h"
 #include "content/browser/download/download_stats.h"
 #include "content/browser/loader/certificate_resource_handler.h"
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
 #include "content/browser/loader/resource_request_info_impl.h"
+#include "content/browser/loader/stream_resource_handler.h"
 #include "content/browser/plugin_service_impl.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/browser/download_item.h"
 #include "content/public/browser/download_save_info.h"
 #include "content/public/browser/download_url_parameters.h"
 #include "content/public/browser/resource_context.h"
 #include "content/public/browser/resource_dispatcher_host_delegate.h"
 #include "content/public/common/resource_response.h"
 #include "content/public/common/webplugininfo.h"
 #include "net/base/io_buffer.h"
@@ skipping 286 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(
+    scoped_ptr<StreamResourceHandler> handler(
         host_->MaybeInterceptAsStream(request(), response_.get()));
-    if (handler)
-      return UseAlternateNextHandler(handler.Pass());
+    if (handler) {
+      if (handler->HasPayload()) {
+        handler->SetNextHandler(next_handler_.Pass());
+
+        next_handler_ = handler.Pass();
+        next_handler_->SetController(this);
+
+        int request_id =
+            ResourceRequestInfo::ForRequest(request())->GetRequestID();
+        return CopyReadBufferToNextHandler(request_id);
+      } else {
+        UseAlternateNextHandler(handler.PassAs<ResourceHandler>());
+      }
+    }
 
 #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()));
       request()->LogBlockedBy("BufferedResourceHandler");
@@ skipping 139 matching lines @@
   request()->LogUnblocked();
   bool defer = false;
   if (!ProcessResponse(&defer)) {
     controller()->Cancel();
   } else if (!defer) {
     controller()->Resume();
   }
 }
 
 }  // namespace content