Send IME events to windowless plug-ins (Chromium side)

content/common/plugin_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.
 //
 // Multiply-included message file, hence no include guard.
 
 #include "build/build_config.h"
 #include "content/common/common_param_traits.h"
 #include "content/common/webkit_param_traits.h"
 #include "ipc/ipc_channel_handle.h"
@@ skipping 288 matching lines @@
 IPC_SYNC_MESSAGE_ROUTED1_0(PluginHostMsg_SetWindow,
                            gfx::PluginWindowHandle /* window */)
 
 #if defined(OS_WIN)
 // The modal_loop_pump_messages_event parameter is an event handle which is
 // passed in for windowless plugins and is used to indicate if messages
 // are to be pumped in sync calls to the plugin process. Currently used
 // in HandleEvent calls.
 IPC_SYNC_MESSAGE_ROUTED1_0(PluginHostMsg_SetWindowlessPumpEvent,
                            HANDLE /* modal_loop_pump_messages_event */)
+
+// Send the IME status retrieved from a windowless plug-in. A windowless plug-in
+// uses the IME attached to a browser process as a renderer does. A plug-in
+// sends this message to control the IME status of a browser process. I would
+// note that a plug-in sends this message to a renderer process that hosts this
+// plug-in (not directly to a browser process) so the renderer process can
+// update its IME status.
+IPC_MESSAGE_ROUTED2(PluginHostMsg_NotifyIMEStatus,
+                    int /* input_type */,
+                    gfx::Rect /* caret_rect */)
 #endif
 
 IPC_MESSAGE_ROUTED1(PluginHostMsg_URLRequest,
                     PluginHostMsg_URLRequest_Params)
 
 IPC_MESSAGE_ROUTED1(PluginHostMsg_CancelResource,
                     int /* id */)
 
 IPC_MESSAGE_ROUTED1(PluginHostMsg_InvalidateRect,
                     gfx::Rect /* rect */)
@@ skipping 151 matching lines @@
 IPC_SYNC_MESSAGE_ROUTED1_2(NPObjectMsg_Construct,
                            std::vector<NPVariant_Param> /* args */,
                            NPVariant_Param /* result_param */,
                            bool /* result */)
 
 IPC_SYNC_MESSAGE_ROUTED2_2(NPObjectMsg_Evaluate,
                            std::string /* script */,
                            bool /* popups_allowed */,
                            NPVariant_Param /* result_param */,
                            bool /* result */)