[iOS] Upstream //ios/net

ios/net/crn_http_protocol_handler.h

+// Copyright 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 IOS_NET_CRN_HTTP_PROTOCOL_HANDLER_H_
+#define IOS_NET_CRN_HTTP_PROTOCOL_HANDLER_H_
+
+#import <Foundation/Foundation.h>
+
+namespace net {
+class URLRequestContextGetter;
+
+class HTTPProtocolHandlerDelegate {
+ public:
+  // Sets the global instance of the HTTPProtocolHandlerDelegate.
+  static void SetInstance(HTTPProtocolHandlerDelegate* delegate);
+
+  virtual ~HTTPProtocolHandlerDelegate() {}
+
+  // Returns true if CRNHTTPProtocolHandler should handle the request.
+  // Returns false if the request should be passed down the NSURLProtocol chain.
+  virtual bool CanHandleRequest(NSURLRequest* request) = 0;
+
+  // If IsRequestSupported returns true, |request| will be processed, otherwise
+  // a NSURLErrorUnsupportedURL error is generated.
+  virtual bool IsRequestSupported(NSURLRequest* request) = 0;
+
+  // Returns the request context used for requests that are not associated with
+  // a RequestTracker. This includes in particular the requests that are not
+  // aware of the network stack. Must not return null.
+  virtual URLRequestContextGetter* GetDefaultURLRequestContext() = 0;
+};
+
+}  // namespace net
+
+// Custom NSURLProtocol handling HTTP and HTTPS requests.
+// The HttpProtocolHandler is registered as a NSURLProtocol in the iOS system.
+// This protocol is called for each NSURLRequest. This allows handling the
+// requests issued by UIWebView using our own network stack.
+@interface CRNHTTPProtocolHandler : NSURLProtocol
+@end
+
+#endif  // IOS_NET_CRN_HTTP_PROTOCOL_HANDLER_H_