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"
 #include "base/memory/ref_counted.h"
 #include "content/browser/loader/resource_handler.h"
 #include "content/browser/loader/stream_writer.h"
 
 namespace net {
 class URLRequest;
 }  // namespace net
 
 namespace content {
 
+class ResourceController;
 class StreamRegistry;
 
 // Redirect this resource to a stream.
 class StreamResourceHandler : public ResourceHandler {
  public:
   // |origin| will be used to construct the URL for the Stream. See
   // 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.
+  void OnRequestRedirected(
+      const net::RedirectInfo& redirect_info,
+      ResourceResponse* resp,
+      std::unique_ptr<ResourceController> controller) override;
 
-  // Not needed, as this event handler ought to be the final resource.
-  bool OnRequestRedirected(const net::RedirectInfo& redirect_info,
-                           ResourceResponse* resp,
-                           bool* defer) override;
+  void OnResponseStarted(
+      ResourceResponse* resp,
+      std::unique_ptr<ResourceController> controller) override;
 
-  bool OnResponseStarted(ResourceResponse* resp, bool* defer) override;
-
-  bool OnWillStart(const GURL& url, bool* defer) override;
+  void OnWillStart(const GURL& url,
+                   std::unique_ptr<ResourceController> controller) 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,
+                       std::unique_ptr<ResourceController> controller) override;
 
-  void OnResponseCompleted(const net::URLRequestStatus& status,
-                           bool* defer) override;
+  void OnResponseCompleted(
+      const net::URLRequestStatus& status,
+      std::unique_ptr<ResourceController> controller) 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_