Add a net::HttpNetworkDelegate and a ChromeNetworkDelegate.

net::HttpNetworkDelegate is an interface for providing hooks into http network activity.  ChromeNetworkDelgate implements this interface in chrome/ code.  In the future, it might also implement other interfaces.  My only current intended consumer for this would be extensions.  There's no actual behavior change, this is all just plumbing for now.
BUG=29314

Review URL: http://codereview.chromium.org/2749015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@49804 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 24 insertions, 0 deletions

diff --git a/net/http/http_network_delegate.h b/net/http/http_network_delegate.h
new file mode 100644
index 0000000..51c6766
--- /dev/null
+++ b/net/http/http_network_delegate.h
@@ -0,0 +1,24 @@
+// Copyright (c) 2010 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 NET_HTTP_HTTP_NETWORK_DELEGATE_H_
+#define NET_HTTP_HTTP_NETWORK_DELEGATE_H_
+
+namespace net {
+
+class HttpRequestHeaders;
+
+class HttpNetworkDelegate {
+ public:
+  // Called right before the HTTP headers are sent.  Allows the delegate to
+  // read/write |headers| before they get sent out.
+  virtual void OnSendHttpRequest(HttpRequestHeaders* headers) = 0;
+
+ protected:
+  virtual ~HttpNetworkDelegate() {}
+};
+
+}  // namespace net
+
+#endif  // NET_HTTP_HTTP_NETWORK_DELEGATE_H_