Remove NPAPI support from Chrome Frame.

chrome_frame/cfproxy.h

 // Copyright (c) 2011 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 CHROME_FRAME_CFPROXY_H_
 #define CHROME_FRAME_CFPROXY_H_
 #pragma once
 
 #include <windows.h>
 #include <map>  // for proxy factory
@@ skipping 23 matching lines @@
 // Some callers of synchronous messages wants a context to be passed back
 // in order to identify the call they made. Presumably one can make
 // multiple sync calls of same type (as async) and want to identify what
 // is what.
 struct SyncMessageContext {
   virtual ~SyncMessageContext() {}
 };
 
 
 /*
-[npapi]         UIDelegate (UI_THREAD)
-[activex]    <---------------+
-[activedoc]                  |
+[activex]       UIDelegate (UI_THREAD)
+[activedoc]  <---------------+
                              |
                              |            ChromeProxy (UI_THREAD)
                        +----------------+ -------------->   +-------+
  URL_FETCHER <---------|ExternalTabProxy|                   |CFProxy|
                        +----------------+                   +-------+
                                                                |
                                  ^                             |
                                  |                             |
                                  +-----------------------------+
 
@@ skipping 104 matching lines @@
   void GetProxy(ChromeProxyDelegate* delegate, const ProxyParams& params);
   bool ReleaseProxy(ChromeProxyDelegate* delegate, const std::string& profile);
  protected:
   virtual ChromeProxy* CreateProxy();
   typedef std::map<std::string, ChromeProxy*> ProxyMap;
   ProxyMap proxies_;
   base::Lock lock_;
 };
 
 #endif  // CHROME_FRAME_CFPROXY_H_