Ensure that context menu->Print works in ChromeFrame.

chrome_frame/chrome_frame_activex_base.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_ACTIVEX_BASE_H_
 #define CHROME_FRAME_CHROME_FRAME_ACTIVEX_BASE_H_
 
 #include <atlbase.h>
 #include <atlcom.h>
 #include <atlctl.h>
 #include <wininet.h>
 #include <shdeprecated.h>  // for IBrowserService2
 #include <shlguid.h>
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/metrics/histogram.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "base/utf_string_conversions.h"
 #include "base/win/scoped_bstr.h"
 #include "base/win/scoped_comptr.h"
 #include "base/win/scoped_variant.h"
 #include "grit/chrome_frame_resources.h"
+#include "chrome/app/chrome_command_ids.h"
 #include "chrome/common/url_constants.h"
 #include "chrome_frame/chrome_frame_plugin.h"
 #include "chrome_frame/com_message_event.h"
 #include "chrome_frame/com_type_info_holder.h"
 #include "chrome_frame/simple_resource_loader.h"
 #include "chrome_frame/urlmon_url_request.h"
 #include "chrome_frame/urlmon_url_request_private.h"
 #include "chrome_frame/utils.h"
 #include "grit/generated_resources.h"
 #include "net/base/cookie_monster.h"
@@ skipping 308 matching lines @@
       switch (cmd) {
         case IDS_CONTENT_CONTEXT_SAVEAUDIOAS:
         case IDS_CONTENT_CONTEXT_SAVEVIDEOAS:
         case IDS_CONTENT_CONTEXT_SAVEIMAGEAS:
         case IDS_CONTENT_CONTEXT_SAVELINKAS: {
           GURL referrer, url;
           chrome_frame::GetMiniContextMenuData(cmd, params, &referrer, &url);
           DoFileDownloadInIE(UTF8ToWide(url.spec()).c_str());
           return true;
         }
+
+        case IDC_PRINT: {
+          automation_client_->PrintTab();
+          break;
+        }
       }
     }
 
     return false;
   }
 
   // Should connections initiated by this class try to block
   // responses served with the X-Frame-Options header?
   // ActiveX controls genereally will want to do this,
   // returning true, while true top-level documents
@@ skipping 836 matching lines @@
   EventHandlers onreadystatechanged_;
   EventHandlers onprivatemessage_;
   EventHandlers onextensionready_;
 
   // Handle network requests when host network stack is used. Passed to the
   // automation client on initialization.
   scoped_ptr<UrlmonUrlRequestManager> url_fetcher_;
 };
 
 #endif  // CHROME_FRAME_CHROME_FRAME_ACTIVEX_BASE_H_