Refactor of NetworkDelegate.

* Renames HttpNetworkDelegate to NetworkDelegate, moves to net/base/network_delegate.h. NOTE: this is a layering violation. wtc/eroman/willchan have agreed to this exception because the other solutions are less palatable.
* Move the virtuals in NetworkDelegate to the private section. Use non-virtual public interface as the network stack's interface for notifying the delegate. Add sanity checking to the implmentation in NetworkDelegate. The private virtual interface is for consumers to receive notifications.
* Remove ExtensionIOEventRouter from ChromeURLRequestContext, it is only used by the ChromeNetworkDelegate. Pass it directly to the ChromeNetworkDelegate's constructor.
* Introduce a SystemNetworkDelegate. It does nothing right now.

BUG=67232
TEST=none

Review URL: http://codereview.chromium.org/6580002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@75822 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 9 insertions, 8 deletions

diff --git a/chrome/browser/net/chrome_network_delegate.h b/chrome/browser/net/chrome_network_delegate.h
index 06c7c93..fbac036 100644
--- a/chrome/browser/net/chrome_network_delegate.h
+++ b/chrome/browser/net/chrome_network_delegate.h
@@ -7,25 +7,26 @@
 #pragma once
 
 #include "base/basictypes.h"
-#include "net/http/http_network_delegate.h"
+#include "net/base/network_delegate.h"
+
+class ExtensionIOEventRouter;
 
 // ChromeNetworkDelegate is the central point from within the chrome code to
 // add hooks into the network stack.
-class ChromeNetworkDelegate : public net::HttpNetworkDelegate {
+class ChromeNetworkDelegate : public net::NetworkDelegate {
  public:
-  ChromeNetworkDelegate();
+  explicit ChromeNetworkDelegate(
+      ExtensionIOEventRouter* extension_io_event_router);
   ~ChromeNetworkDelegate();
 
-  // net::HttpNetworkDelegate methods:
+ private:
+  // NetworkDelegate methods:
   virtual void OnBeforeURLRequest(net::URLRequest* request);
   virtual void OnSendHttpRequest(net::HttpRequestHeaders* headers);
   virtual void OnResponseStarted(net::URLRequest* request);
   virtual void OnReadCompleted(net::URLRequest* request, int bytes_read);
 
-  // TODO(willchan): Add functions for consumers to register ways to
-  // access/modify the request.
-
- private:
+  ExtensionIOEventRouter* const extension_io_event_router_;
   DISALLOW_COPY_AND_ASSIGN(ChromeNetworkDelegate);
 };