Redirect HTML resource bytes directly to parser thread (Chrome side CL)

content/child/resource_dispatcher.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.
 
 // See http://dev.chromium.org/developers/design-documents/multi-process-resource-loading
 
 #ifndef CONTENT_CHILD_RESOURCE_DISPATCHER_H_
 #define CONTENT_CHILD_RESOURCE_DISPATCHER_H_
 
 #include <deque>
 #include <string>
 
 #include "base/containers/hash_tables.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/shared_memory.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
 #include "content/common/content_export.h"
 #include "ipc/ipc_listener.h"
 #include "ipc/ipc_sender.h"
 #include "webkit/child/resource_loader_bridge.h"
 
 struct ResourceMsg_RequestCompleteData;
 
 namespace content {
 class ResourceDispatcherDelegate;
 struct ResourceResponseHead;
 struct SiteIsolationResponseMetaData;
+class ThreadedDataProvider;

[darin (slow to review), 2014/03/31 17:00:01]

nit: "class" before "struct"

 
 // This class serves as a communication interface between the
 // ResourceDispatcherHost in the browser process and the ResourceLoaderBridge in
 // the child process.  It can be used from any child process.
 class CONTENT_EXPORT ResourceDispatcher : public IPC::Listener {
  public:
   explicit ResourceDispatcher(IPC::Sender* sender);
   virtual ~ResourceDispatcher();
 
   // IPC::Listener implementation.
@@ skipping 24 matching lines @@
     return message_sender_;
   }
 
   // Toggles the is_deferred attribute for the specified request.
   void SetDefersLoading(int request_id, bool value);
 
   // Indicates the priority of the specified request changed.
   void DidChangePriority(int routing_id, int request_id,
                          net::RequestPriority new_priority);
 
+  // The provided data receiver will receive incoming resource data rather
+  // than the resource bridge.
+  bool AttachThreadedDataReceiver(
+      int request_id, blink::WebThreadedDataReceiver* threaded_data_receiver);
+
   // This does not take ownership of the delegate. It is expected that the
   // delegate have a longer lifetime than the ResourceDispatcher.
   void set_delegate(ResourceDispatcherDelegate* delegate) {
     delegate_ = delegate;
   }
 
   // Remembers IO thread timestamp for next resource message.
   void set_io_timestamp(base::TimeTicks io_timestamp) {
     io_timestamp_ = io_timestamp;
   }
 
  private:
   friend class ResourceDispatcherTest;
 
   typedef std::deque<IPC::Message*> MessageQueue;
   struct PendingRequestInfo {
     PendingRequestInfo();
 
     PendingRequestInfo(webkit_glue::ResourceLoaderBridge::Peer* peer,
                        ResourceType::Type resource_type,
                        int origin_pid,
                        const GURL& frame_origin,
                        const GURL& request_url);
 
     ~PendingRequestInfo();
 
     webkit_glue::ResourceLoaderBridge::Peer* peer;
+    ThreadedDataProvider* threaded_data_provider;
     ResourceType::Type resource_type;
     // The PID of the original process which issued this request. This gets
     // non-zero only for a request proxied by another renderer, particularly
     // requests from plugins.
     int origin_pid;
     MessageQueue deferred_message_queue;
     bool is_deferred;
     // Original requested url.
     GURL url;
     // The security origin of the frame that initiates this request.
@@ skipping 93 matching lines @@
 
   // IO thread timestamp for ongoing IPC message.
   base::TimeTicks io_timestamp_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceDispatcher);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_RESOURCE_DISPATCHER_H_