Cleanup GtkIMContext related code by splitting it into separated source file.

chrome/browser/renderer_host/render_widget_host_view_gtk.h

 // Copyright (c) 2006-2009 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_GTK_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_GTK_H_
 
 #include <gdk/gdk.h>
+
+#include <map>
 #include <vector>
+#include <string>
 
 #include "base/gfx/native_widget_types.h"
 #include "base/scoped_ptr.h"
 #include "chrome/browser/renderer_host/render_widget_host_view.h"
 #include "chrome/common/owned_widget_gtk.h"
 #include "chrome/common/render_messages.h"
 #include "webkit/glue/plugins/gtk_plugin_container_manager.h"
 #include "webkit/glue/webcursor.h"
 
 class RenderWidgetHost;
 // A conveience wrapper class for GtkIMContext;
-class RenderWidgetHostViewGtkIMContext;
+class GtkIMContextWrapper;
 
 typedef struct _GtkClipboard GtkClipboard;
 typedef struct _GtkSelectionData GtkSelectionData;
-typedef struct _GtkIMContext GtkIMContext;
 
 // -----------------------------------------------------------------------------
 // See comments in render_widget_host_view.h about this class and its members.
 // -----------------------------------------------------------------------------
 class RenderWidgetHostViewGtk : public RenderWidgetHostView {
  public:
-  RenderWidgetHostViewGtk(RenderWidgetHost* widget);
+  explicit RenderWidgetHostViewGtk(RenderWidgetHost* widget);
   ~RenderWidgetHostViewGtk();
 
   // Initialize this object for use as a drawing area.
   void InitAsChild();
 
   // RenderWidgetHostView implementation.
   virtual void InitAsPopup(RenderWidgetHostView* parent_host_view,
                            const gfx::Rect& pos);
   virtual RenderWidgetHost* GetRenderWidgetHost() const { return host_; }
   virtual void DidBecomeSelected();
@@ skipping 74 matching lines @@
   GtkWidget* parent_;
   // We ignore the first mouse release on popups.  This allows the popup to
   // stay open.
   bool is_popup_first_mouse_release_;
 
   // Whether or not this widget was focused before shadowed by another widget.
   // Used in OnGrabNotify() handler to track the focused state correctly.
   bool was_focused_before_grab_;
 
   // A conveience wrapper object for GtkIMContext;
-  scoped_ptr<RenderWidgetHostViewGtkIMContext> im_context_;
+  scoped_ptr<GtkIMContextWrapper> im_context_;
 
   // Helper class that lets us allocate plugin containers and move them.
   GtkPluginContainerManager plugin_container_manager_;
 
   // A map of plugin process id -> windows related to that process.
   // Lets us clean up immediately when a plugin process crashes.
   typedef std::multimap<base::ProcessId, gfx::PluginWindowHandle> PluginPidMap;
   PluginPidMap plugin_pid_map_;
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_GTK_H_