Use WebWidget from the WebKit API. This change also makes...

chrome/browser/renderer_host/render_widget_host_view_gtk.cc

 // Copyright (c) 2006-2008 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 "chrome/browser/renderer_host/render_widget_host_view_gtk.h"
 
 #include <gtk/gtk.h>
 #include <gdk/gdk.h>
 #include <gdk/gdkkeysyms.h>
 #include <gdk/gdkx.h>
@@ skipping 281 matching lines @@
   static gboolean MouseScrollEvent(GtkWidget* widget, GdkEventScroll* event,
                                    RenderWidgetHostViewGtk* host_view) {
     host_view->GetRenderWidgetHost()->ForwardWheelEvent(
         WebInputEventFactory::mouseWheelEvent(event));
     return FALSE;
   }
 
   static void InputMethodCommit(GtkIMContext* im_context,
                                 gchar* text,
                                 RenderWidgetHostViewGtk* host_view) {
-    std::wstring im_text = UTF8ToWide(text);
+    const string16& im_text = UTF8ToUTF16(text);
     if (!host_view->im_is_composing_cjk_text_ && im_text.length() == 1) {
       // Send a Char event when we input a composed character without IMEs so
       // that this event is to be dispatched to onkeypress() handlers,
       // autofill, etc.
       ForwardCharEvent(host_view, im_text[0]);
     } else {
       // Send an IME event.
       // Unlike a Char event, an IME event is NOT dispatched to onkeypress()
       // handlers or autofill.
       host_view->GetRenderWidgetHost()->ImeConfirmComposition(im_text);
@@ skipping 24 matching lines @@
                                         RenderWidgetHostViewGtk* host_view) {
     // Send an IME event to update the composition node of the renderer.
     // TODO(hbono): an IME intercepts all key events while composing a text,
     // i.e. we cannot receive any GDK_KEY_PRESS (or GDK_KEY_UP) events.
     // Should we send pseudo KeyDown (and KeyUp) events to emulate Windows?
     gchar* preedit_text = NULL;
     gint cursor_position = 0;
     gtk_im_context_get_preedit_string(im_context, &preedit_text, NULL,
                                       &cursor_position);
     host_view->GetRenderWidgetHost()->ImeSetComposition(
-        UTF8ToWide(preedit_text), cursor_position, -1, -1);
+        UTF8ToUTF16(preedit_text), cursor_position, -1, -1);
     g_free(preedit_text);
   }
 
   static void ForwardCharEvent(RenderWidgetHostViewGtk* host_view,
                                wchar_t im_character) {
     if (!im_character)
       return;
 
     NativeWebKeyboardEvent char_event(im_character,
                                       host_view->im_modifier_state_,
@@ skipping 389 matching lines @@
   }
 }
 
 void RenderWidgetHostViewGtk::PluginProcessCrashed(base::ProcessId pid) {
   for (PluginPidMap::iterator i = plugin_pid_map_.find(pid);
        i != plugin_pid_map_.end() && i->first == pid; ++i) {
     plugin_container_manager_.DestroyPluginContainer(i->second);
   }
   plugin_pid_map_.erase(pid);
 }