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

content/renderer/browser_plugin/browser_plugin.cc

 // Copyright 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/renderer/browser_plugin/browser_plugin.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/command_line.h"
@@ skipping 584 matching lines @@
 }
 
 bool BrowserPlugin::FinishComposingText(
     blink::WebInputMethodController::ConfirmCompositionBehavior
         selection_behavior) {
   if (!attached())
     return false;
   bool keep_selection =
       (selection_behavior == blink::WebInputMethodController::kKeepSelection);
   BrowserPluginManager::Get()->Send(
-      new BrowserPluginHostMsg_ImeFinishComposingText(keep_selection));
+      new BrowserPluginHostMsg_ImeFinishComposingText(
+          browser_plugin_instance_id_, keep_selection));
   // TODO(kochi): This assumes the IPC handling always succeeds.
   return true;
 }
 
 void BrowserPlugin::ExtendSelectionAndDelete(int before, int after) {
   if (!attached())
     return;
   BrowserPluginManager::Get()->Send(
       new BrowserPluginHostMsg_ExtendSelectionAndDelete(
           browser_plugin_instance_id_,
@@ skipping 16 matching lines @@
 
 bool BrowserPlugin::HandleMouseLockedInputEvent(
     const blink::WebMouseEvent& event) {
   BrowserPluginManager::Get()->Send(
       new BrowserPluginHostMsg_HandleInputEvent(browser_plugin_instance_id_,
                                                 &event));
   return true;
 }
 
 }  // namespace content