Use a placeholder instead of the default plugin for missing plug-ins on Mac and Linux.

content/common/view_messages.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.
 
 // 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/common_param_traits.h"
@@ skipping 21 matching lines @@
 #include "ui/base/ime/text_input_type.h"
 #include "ui/base/range/range.h"
 #include "ui/gfx/rect.h"
 #include "webkit/glue/context_menu.h"
 #include "webkit/glue/password_form.h"
 #include "webkit/glue/webcookie.h"
 #include "webkit/glue/webmenuitem.h"
 #include "webkit/glue/webpreferences.h"
 #include "webkit/glue/webaccessibility.h"
 #include "webkit/plugins/npapi/webplugin.h"
-#include "webkit/plugins/webplugininfo.h"
 
 #if defined(OS_MACOSX)
 #include "content/common/mac/font_descriptor.h"
 #endif
 
 #undef IPC_MESSAGE_EXPORT
 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
 
 #define IPC_MESSAGE_START ViewMsgStart
 
@@ skipping 241 matching lines @@
 
 IPC_STRUCT_TRAITS_BEGIN(webkit::npapi::WebPluginGeometry)
   IPC_STRUCT_TRAITS_MEMBER(window)
   IPC_STRUCT_TRAITS_MEMBER(window_rect)
   IPC_STRUCT_TRAITS_MEMBER(clip_rect)
   IPC_STRUCT_TRAITS_MEMBER(cutout_rects)
   IPC_STRUCT_TRAITS_MEMBER(rects_valid)
   IPC_STRUCT_TRAITS_MEMBER(visible)
 IPC_STRUCT_TRAITS_END()
 
-IPC_STRUCT_TRAITS_BEGIN(webkit::WebPluginMimeType)
-  IPC_STRUCT_TRAITS_MEMBER(mime_type)
-  IPC_STRUCT_TRAITS_MEMBER(file_extensions)
-  IPC_STRUCT_TRAITS_MEMBER(description)
-  IPC_STRUCT_TRAITS_MEMBER(additional_param_names)
-  IPC_STRUCT_TRAITS_MEMBER(additional_param_values)
-IPC_STRUCT_TRAITS_END()
-
-IPC_STRUCT_TRAITS_BEGIN(webkit::WebPluginInfo)
-  IPC_STRUCT_TRAITS_MEMBER(name)
-  IPC_STRUCT_TRAITS_MEMBER(path)
-  IPC_STRUCT_TRAITS_MEMBER(version)
-  IPC_STRUCT_TRAITS_MEMBER(desc)
-  IPC_STRUCT_TRAITS_MEMBER(mime_types)
-  IPC_STRUCT_TRAITS_MEMBER(type)
-IPC_STRUCT_TRAITS_END()
-
 IPC_STRUCT_TRAITS_BEGIN(media::MediaLogEvent)
   IPC_STRUCT_TRAITS_MEMBER(id)
   IPC_STRUCT_TRAITS_MEMBER(type)
   IPC_STRUCT_TRAITS_MEMBER(params)
   IPC_STRUCT_TRAITS_MEMBER(time)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_BEGIN(ViewHostMsg_CreateWindow_Params)
   // Routing ID of the view initiating the open.
   IPC_STRUCT_MEMBER(int, opener_id)
@@ skipping 1141 matching lines @@
                             bool /* cookies_enabled */)
 
 // Used to get the list of plugins
 IPC_SYNC_MESSAGE_CONTROL1_1(ViewHostMsg_GetPlugins,
     bool /* refresh*/,
     std::vector<webkit::WebPluginInfo> /* plugins */)
 
 // Return information about a plugin for the given URL and MIME
 // type. If there is no matching plugin, |found| is false.
 // |actual_mime_type| is the actual mime type supported by the
-// plugin found that match the URL given (one for each item in
-// |info|).
+// found plugin.
 IPC_SYNC_MESSAGE_CONTROL4_3(ViewHostMsg_GetPluginInfo,
                             int /* routing_id */,
                             GURL /* url */,
                             GURL /* page_url */,
                             std::string /* mime_type */,
                             bool /* found */,
                             webkit::WebPluginInfo /* plugin info */,
                             std::string /* actual_mime_type */)
 
 // A renderer sends this to the browser process when it wants to
@@ skipping 459 matching lines @@
 
 // Requests to lock the mouse. Will result in a ViewMsg_LockMouse_ACK message
 // being sent back.
 IPC_MESSAGE_ROUTED0(ViewHostMsg_LockMouse)
 
 // Requests to unlock the mouse. A ViewMsg_MouseLockLost message will be sent
 // whenever the mouse is unlocked (which may or may not be caused by
 // ViewHostMsg_UnlockMouse).
 IPC_MESSAGE_ROUTED0(ViewHostMsg_UnlockMouse)