Fix an IME regression for <webview> due to missing IPC message param

content/browser/browser_plugin/browser_plugin_guest.cc

 // 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.
 
 #include "content/browser/browser_plugin/browser_plugin_guest.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 
@@ skipping 902 matching lines @@
 void BrowserPluginGuest::OnImeCommitText(
     int browser_plugin_instance_id,
     const base::string16& text,
     const std::vector<blink::WebCompositionUnderline>& underlines,
     const gfx::Range& replacement_range,
     int relative_cursor_pos) {
   Send(new InputMsg_ImeCommitText(routing_id(), text, underlines,
                                   replacement_range, relative_cursor_pos));
 }
 
-void BrowserPluginGuest::OnImeFinishComposingText(bool keep_selection) {
+void BrowserPluginGuest::OnImeFinishComposingText(
+    int browser_plugin_instance_id,
+    bool keep_selection) {
+  DCHECK_EQ(browser_plugin_instance_id_, browser_plugin_instance_id);
   Send(new InputMsg_ImeFinishComposingText(routing_id(), keep_selection));
 }
 
 void BrowserPluginGuest::OnExtendSelectionAndDelete(
     int browser_plugin_instance_id,
     int before,
     int after) {
   RenderFrameHostImpl* rfh = static_cast<RenderFrameHostImpl*>(
       web_contents()->GetFocusedFrame());
   if (rfh)
@@ skipping 135 matching lines @@
           range, character_bounds);
 }
 #endif
 
 void BrowserPluginGuest::SetContextMenuPosition(const gfx::Point& position) {
   if (delegate_)
     delegate_->SetContextMenuPosition(position);
 }
 
 }  // namespace content