Use defer out-params instead of ResourceDispatcherHostImpl::PauseRequest(...true)

content/browser/renderer_host/buffered_resource_handler.h

 // 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_BUFFERED_RESOURCE_HANDLER_H_
 #define CONTENT_BROWSER_RENDERER_HOST_BUFFERED_RESOURCE_HANDLER_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 13 matching lines @@
 
 // Used to buffer a request until enough data has been received.
 class BufferedResourceHandler : public LayeredResourceHandler {
  public:
   BufferedResourceHandler(ResourceHandler* handler,
                           ResourceDispatcherHostImpl* host,
                           net::URLRequest* request);
 
   // ResourceHandler implementation:
   virtual bool OnResponseStarted(int request_id,
-                                 ResourceResponse* response) OVERRIDE;
+                                 ResourceResponse* response,
+                                 bool* defer) OVERRIDE;
   virtual bool OnWillRead(int request_id,
                           net::IOBuffer** buf,
                           int* buf_size,
                           int min_size) OVERRIDE;
-  virtual bool OnReadCompleted(int request_id, int* bytes_read) OVERRIDE;
+  virtual bool OnReadCompleted(int request_id, int* bytes_read,
+                               bool* defer) OVERRIDE;
   virtual void OnRequestClosed() OVERRIDE;
 
  private:
   virtual ~BufferedResourceHandler();
 
   // Returns true if we should delay OnResponseStarted forwarding.
   bool DelayResponse();
 
   // Returns true if there is enough information to process the DocType.
   bool DidBufferEnough(int bytes_read);
 
   // Returns true if we have to keep buffering data.
   bool KeepBuffering(int bytes_read);
 
   // Sends a pending OnResponseStarted notification.
-  bool CompleteResponseStarted(int request_id);
+  bool CompleteResponseStarted(int request_id, bool* defer);
 
   // Returns true if we have to wait until the plugin list is generated.
   bool ShouldWaitForPlugins();
 
   // A test to determining whether the request should be forwarded to the
   // download thread.  If need_plugin_list was passed in and was set to true,
   // that means that the check couldn't be fully done because the plugins aren't
   // loaded.  The function should be called again after the plugin list is
   // loaded.
   bool ShouldDownload(bool* need_plugin_list);
 
   // Informs the original ResourceHandler |next_handler_| that the response
   // will be handled entirely by the new ResourceHandler |handler|.  A
   // reference to |handler| is acquired.  Returns false to indicate an error,
   // which will result in the request being cancelled.
-  bool UseAlternateResourceHandler(int request_id, ResourceHandler* handler);
+  bool UseAlternateResourceHandler(int request_id, ResourceHandler* handler,
+                                   bool* defer);
 
   // Forwards any queued events to |next_handler_|.  Returns false to indicate
   // an error, which will result in the request being cancelled.
-  bool ForwardPendingEventsToNextHandler(int request_id);
+  bool ForwardPendingEventsToNextHandler(int request_id, bool* defer);
 
   // Copies data from |read_buffer_| to |next_handler_|.
   void CopyReadBufferToNextHandler(int request_id);
 
   // Called on the IO thread once the list of plugins has been loaded.
   void OnPluginsLoaded(const std::vector<webkit::WebPluginInfo>& plugins);
 
   scoped_refptr<ResourceResponse> response_;
   ResourceDispatcherHostImpl* host_;
   net::URLRequest* request_;
   scoped_refptr<net::IOBuffer> read_buffer_;
   scoped_refptr<net::IOBuffer> my_buffer_;
   int read_buffer_size_;
   int bytes_read_;
   bool sniff_content_;
   bool wait_for_plugins_;
+  bool deferred_waiting_for_plugins_;
   bool buffering_;
   bool next_handler_needs_response_started_;
   bool next_handler_needs_will_read_;
   bool finished_;
 
   DISALLOW_COPY_AND_ASSIGN(BufferedResourceHandler);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_BUFFERED_RESOURCE_HANDLER_H_