Remove NPAPI support from Chrome Frame.

chrome_frame/chrome_frame_plugin.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_CHROME_FRAME_PLUGIN_H_
 #define CHROME_FRAME_CHROME_FRAME_PLUGIN_H_
 
 #include <string>
 #include <vector>
 
 #include "base/memory/ref_counted.h"
 #include "base/win/win_util.h"
 #include "chrome_frame/chrome_frame_automation.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_paths_internal.h"
 #include "chrome_frame/simple_resource_loader.h"
 #include "chrome_frame/navigation_constraints.h"
 #include "chrome_frame/utils.h"
 #include "grit/chromium_strings.h"
 
 #define IDC_ABOUT_CHROME_FRAME 40018
 
 // Helper so that this file doesn't include the messages header.
 void ChromeFramePluginGetParamsCoordinates(
     const MiniContextMenuParams& params,
     int* x,
     int* y);
 
 // A class to implement common functionality for all types of
-// plugins: NPAPI. ActiveX and ActiveDoc
+// plugins: ActiveX and ActiveDoc
 template <typename T>
 class ChromeFramePlugin
     : public ChromeFrameDelegateImpl,
       public NavigationConstraintsImpl  {
  public:
   ChromeFramePlugin() : ignore_setfocus_(false){
   }
   ~ChromeFramePlugin() {
     Uninitialize();
   }
@@ skipping 218 matching lines @@
   // Url of the containing document.
   std::string document_url_;
 
   // We set this flag when we're taking the focus ourselves
   // and notifying the host browser that we're doing so.
   // When the flag is not set, we transfer the focus to chrome.
   bool ignore_setfocus_;
 };
 
 #endif  // CHROME_FRAME_CHROME_FRAME_PLUGIN_H_