Send the correct referrer and policy when saving a file via PPAPI

content/common/view_messages.h

 // Copyright (c) 2012 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.
 
 // IPC messages for page rendering.
 // Multiply-included message file, hence no include guard.
 
 #include "base/process.h"
 #include "base/shared_memory.h"
 #include "content/common/content_export.h"
@@ skipping 1944 matching lines @@
 IPC_MESSAGE_CONTROL3(ViewHostMsg_DidGenerateCacheableMetadata,
                      GURL /* url */,
                      double /* expected_response_time */,
                      std::vector<char> /* data */)
 
 // Updates the content restrictions, i.e. to disable print/copy.
 IPC_MESSAGE_ROUTED1(ViewHostMsg_UpdateContentRestrictions,
                     int /* restrictions */)
 
 // Brings up SaveAs... dialog to save specified URL.
-IPC_MESSAGE_ROUTED1(ViewHostMsg_SaveURLAs,
-                    GURL /* url */)
+IPC_MESSAGE_ROUTED2(ViewHostMsg_SaveURLAs,
+                    GURL /* url */,
+                    content::Referrer /* referrer */)
 
 // Displays a JavaScript out-of-memory message in the infobar.
 IPC_MESSAGE_ROUTED0(ViewHostMsg_JSOutOfMemory)
 
 // Register a new handler for URL requests with the given scheme.
 IPC_MESSAGE_ROUTED3(ViewHostMsg_RegisterProtocolHandler,
                     std::string /* scheme */,
                     GURL /* url */,
                     string16 /* title */)
 
@@ skipping 51 matching lines @@
                     int  /* automation_id */)
 
 // Sent to the browser when the renderer detects it is blocked on a pepper
 // plugin message for too long. This is also sent when it becomes unhung
 // (according to the value of is_hung). The browser can give the user the
 // option of killing the plugin.
 IPC_MESSAGE_ROUTED3(ViewHostMsg_PepperPluginHung,
                     int /* plugin_child_id */,
                     FilePath /* path */,
                     bool /* is_hung */)