Refactor ResourceHandler API.

content/browser/loader/stream_resource_handler.h

 // Copyright (c) 2013 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_LOADER_STREAM_RESOURCE_HANDLER_H_
 #define CONTENT_BROWSER_LOADER_STREAM_RESOURCE_HANDLER_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 16 matching lines @@
   // WebCore::BlobURL and and WebCore::SecurityOrigin in Blink to understand
   // how origin check is done on resource loading.
   StreamResourceHandler(net::URLRequest* request,
                         StreamRegistry* registry,
                         const GURL& origin);
   ~StreamResourceHandler() override;
 
   void SetController(ResourceController* controller) override;
 
   // Not needed, as this event handler ought to be the final resource.
-  bool OnRequestRedirected(const net::RedirectInfo& redirect_info,
+  void OnRequestRedirected(const net::RedirectInfo& redirect_info,
                            ResourceResponse* resp,
-                           bool* defer) override;
+                           bool* defer_or_cancel) override;
 
-  bool OnResponseStarted(ResourceResponse* resp, bool* defer) override;
+  void OnResponseStarted(ResourceResponse* resp,
+                         bool* defer_or_cancel) override;
 
-  bool OnWillStart(const GURL& url, bool* defer) override;
+  void OnWillStart(const GURL& url, bool* defer_or_cancel) override;
 
   // Create a new buffer to store received data.
   bool OnWillRead(scoped_refptr<net::IOBuffer>* buf,
                   int* buf_size,
                   int min_size) override;
 
   // A read was completed, forward the data to the Stream.
-  bool OnReadCompleted(int bytes_read, bool* defer) override;
+  void OnReadCompleted(int bytes_read, bool* defer_or_cancel) override;
 
   void OnResponseCompleted(const net::URLRequestStatus& status,
                            bool* defer) override;
 
   void OnDataDownloaded(int bytes_downloaded) override;
 
   Stream* stream() { return writer_.stream(); }
 
  private:
   StreamWriter writer_;
 
   DISALLOW_COPY_AND_ASSIGN(StreamResourceHandler);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_LOADER_STREAM_RESOURCE_HANDLER_H_