Update Mac plugin IME handling to match updated spec

chrome/browser/renderer_host/render_widget_host_view.h

 // Copyright (c) 2010 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 CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_H_
 #pragma once
 
 #if defined(OS_MACOSX)
 #include <OpenGL/OpenGL.h>
@@ skipping 190 matching lines @@
   // (minimized/unminimized, app hidden/unhidden, etc).
   // TODO(stuartmorgan): This is a temporary plugin-specific workaround for
   // <http://crbug.com/34266>. Once that is fixed, this (and the corresponding
   // message and renderer-side handling) can be removed in favor of using
   // WasHidden/DidBecomeSelected.
   virtual void SetWindowVisibility(bool visible) = 0;
 
   // Informs the view that its containing window's frame changed.
   virtual void WindowFrameChanged() = 0;
 
-  // Start or stop plugin IME for the given plugin.
-  virtual void SetPluginImeEnabled(bool enabled, int plugin_id) = 0;
+  // Informs the view that a plugin gained or lost focus.
+  virtual void PluginFocusChanged(bool focused, int plugin_id) = 0;
+
+  // Start plugin IME.
+  virtual void StartPluginIme() = 0;
 
   // Does any event handling necessary for plugin IME; should be called after
   // the plugin has already had a chance to process the event. If plugin IME is
   // not enabled, this is a no-op, so it is always safe to call.
   // Returns true if the event was handled by IME.
   virtual bool PostProcessEventForPluginIme(
       const NativeWebKeyboardEvent& event) = 0;
 
   // Methods associated with GPU-accelerated plug-in instances.
   virtual gfx::PluginWindowHandle AllocateFakePluginWindowHandle(
@@ skipping 86 matching lines @@
 
   // The current reserved area in view coordinates where contents should not be
   // rendered to draw the resize corner, sidebar mini tabs etc.
   gfx::Rect reserved_rect_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostView);
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_H_