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

webkit/child/resource_loader_bridge.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.
 //
 // The intent of this file is to provide a type-neutral abstraction between
 // Chrome and WebKit for resource loading. This pure-virtual interface is
 // implemented by the embedder.
 //
 // One of these objects will be created by WebKit for each request. WebKit
 // will own the pointer to the bridge, and will delete it when the request is
@@ skipping 15 matching lines @@
 #include "base/platform_file.h"
 #include "base/values.h"
 #include "net/base/request_priority.h"
 #include "third_party/WebKit/public/platform/WebReferrerPolicy.h"
 #include "third_party/WebKit/public/platform/WebURLRequest.h"
 #include "url/gurl.h"
 #include "webkit/child/webkit_child_export.h"
 #include "webkit/common/resource_response_info.h"
 #include "webkit/common/resource_type.h"
 
+namespace blink {
+class WebParserResourceBridge;
+}
+
 namespace webkit_glue {
 class ResourceRequestBody;
 
 class ResourceLoaderBridge {
  public:
   // Structure used when calling
   // WebKitPlatformSupportImpl::CreateResourceLoader().
   struct WEBKIT_CHILD_EXPORT RequestInfo {
     RequestInfo();
     ~RequestInfo();
@@ skipping 128 matching lines @@
     virtual void OnReceivedCachedMetadata(const char* data, int len) { }
 
     // Called when the response is complete.  This method signals completion of
     // the resource load.
     virtual void OnCompletedRequest(
         int error_code,
         bool was_ignored_by_handler,
         const std::string& security_info,
         const base::TimeTicks& completion_time) = 0;
 
+    // Called by the parser-resource bridge when its resource filter has
+    // been installed on the I/O thread, and signals Blink that any further
+    // data chunks which are received by the main thread should not be passed
+    // to the parser thread as that now happens directly.
+    virtual void OnParserResourceMessageFilterAdded() { }
    protected:
     virtual ~Peer() {}
   };
 
   // use WebKitPlatformSupportImpl::CreateResourceLoader() for construction, but
   // anybody can delete at any time, INCLUDING during processing of callbacks.
   WEBKIT_CHILD_EXPORT virtual ~ResourceLoaderBridge();
 
   // Call this method before calling Start() to set the request body.
   // May only be used with HTTP(S) POST requests.
@@ skipping 11 matching lines @@
 
   // Call this method to suspend or resume a load that is in progress.  This
   // method may only be called after a successful call to the Start method.
   virtual void SetDefersLoading(bool value) = 0;
 
   // Call this method when the priority of the requested resource changes after
   // Start() has been called.  This method may only be called after a successful
   // call to the Start method.
   virtual void DidChangePriority(net::RequestPriority new_priority) = 0;
 
+  // Call this method to request an implementation of WebParserResourceBridge
+  // which will be used to interact with the parser thread.
+  virtual blink::WebParserResourceBridge* ConstructParserResourceBridge() = 0;
+
   // Call this method to load the resource synchronously (i.e., in one shot).
   // This is an alternative to the Start method.  Be warned that this method
   // will block the calling thread until the resource is fully downloaded or an
   // error occurs.  It could block the calling thread for a long time, so only
   // use this if you really need it!  There is also no way for the caller to
   // interrupt this method.  Errors are reported via the status field of the
   // response parameter.
   virtual void SyncLoad(SyncLoadResponse* response) = 0;
 
  protected:
   // Construction must go through
   // WebKitPlatformSupportImpl::CreateResourceLoader()
   // For HTTP(S) POST requests, the AppendDataToUpload and AppendFileToUpload
   // methods may be called to construct the body of the request.
   WEBKIT_CHILD_EXPORT ResourceLoaderBridge();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ResourceLoaderBridge);
 };
 
 }  // namespace webkit_glue
 
 #endif  // WEBKIT_CHILD_RESOURCE_LOADER_BRIDGE_H_