Improve and unify Mac OS X run-time version checks

webkit/plugins/npapi/webplugin_delegate_impl.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.
 
 #ifndef WEBKIT_PLUGINS_NPAPI_WEBPLUGIN_DELEGATE_IMPL_H_
 #define WEBKIT_PLUGINS_NPAPI_WEBPLUGIN_DELEGATE_IMPL_H_
 
 #include <string>
 #include <list>
 
@@ skipping 386 matching lines @@
 
   // Starts an IME session.
   void StartIme();
 
   // Informs the browser about the updated accelerated drawing surface.
   void UpdateAcceleratedSurface();
 
   // Uses a CARenderer to draw the plug-in's layer in our OpenGL surface.
   void DrawLayerInSurface();
 
-  // Returns true if plugin IME is supported.
-  bool IsImeSupported();
-
 #ifndef NP_NO_CARBON
   // Moves our dummy window to match the current screen location of the plugin.
   void UpdateDummyWindowBounds(const gfx::Point& plugin_origin);
 
 #ifndef NP_NO_QUICKDRAW
   // Sets the mode used for QuickDraw plugin drawing. If enabled is true the
   // plugin draws into a GWorld that's not connected to a window (the faster
   // path), otherwise the plugin draws into our invisible dummy window (which is
   // slower, since the call we use to scrape the window contents is much more
   // expensive than copying between GWorlds).
@@ skipping 94 matching lines @@
   // True if NPP_New did not return an error.
   bool creation_succeeded_;
 
   DISALLOW_COPY_AND_ASSIGN(WebPluginDelegateImpl);
 };
 
 }  // namespace npapi
 }  // namespace webkit
 
 #endif  // WEBKIT_PLUGINS_NPAPI_WEBPLUGIN_DELEGATE_IMPL_H_