Emulate ImmSetAssociateContextEx() for Flash.

webkit/plugins/npapi/webplugin_delegate_impl_win.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 "webkit/plugins/npapi/webplugin_delegate_impl.h"
 
 #include <map>
 #include <string>
 #include <vector>
 
@@ skipping 1462 matching lines @@
     return false;
   }
 
   if (GetQuirks() & PLUGIN_QUIRK_PATCH_GETKEYSTATE) {
     if (np_event.event == WM_KEYDOWN)
       SetSavedKeyState(np_event.wParam);
     else if (np_event.event == WM_KEYUP)
       UnsetSavedKeyState(np_event.wParam);
   }
 
+  // Allow this plug-in to access this IME emulator through IMM32 API while the
+  // plug-in is processing this event.
+  if (GetQuirks() & PLUGIN_QUIRK_EMULATE_IME) {
+    if (!plugin_ime_.get())
+      plugin_ime_.reset(new WebPluginIMEWin);
+  }
+  WebPluginIMEWin::ScopedLock lock(plugin_ime_.get());
+
   HWND last_focus_window = NULL;
 
   if (ShouldTrackEventForModalLoops(&np_event)) {
     // A windowless plugin can enter a modal loop in a NPP_HandleEvent call.
     // For e.g. Flash puts up a context menu when we right click on the
     // windowless plugin area. We detect this by setting up a message filter
     // hook pror to calling NPP_HandleEvent on the plugin and unhook on
     // return from NPP_HandleEvent. If the plugin does enter a modal loop
     // in that context we unhook on receiving the first notification in
     // the message filter hook.
@@ skipping 222 matching lines @@
       ::ReleaseCapture();
       break;
 
     default:
       break;
   }
 }
 
 }  // namespace npapi
 }  // namespace webkit