Convert string16 to base::string16 in content.

content/browser/renderer_host/gtk_im_context_wrapper.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 "content/browser/renderer_host/gtk_im_context_wrapper.h"
 
 #include <gdk/gdk.h>
 #include <gdk/gdkkeysyms.h>
 #include <gtk/gtk.h>
 
@@ skipping 459 matching lines @@
 void GtkIMContextWrapper::ConfirmComposition() {
   if (!is_enabled_)
     return;
 
   DCHECK(!is_in_key_event_handler_);
 
   if (is_composing_text_) {
     if (host_view_->GetRenderWidgetHost()) {
       RenderWidgetHostImpl::From(
           host_view_->GetRenderWidgetHost())->ImeConfirmComposition(
-              string16(), gfx::Range::InvalidRange(), false);
+              base::string16(), gfx::Range::InvalidRange(), false);
     }
 
     // Reset the input method.
     CancelComposition();
   }
 }
 
-void GtkIMContextWrapper::HandleCommit(const string16& text) {
+void GtkIMContextWrapper::HandleCommit(const base::string16& text) {
   if (suppress_next_commit_)
     return;
 
   // Append the text to the buffer, because commit signal might be fired
   // multiple times when processing a key event.
   commit_text_.append(text);
   // Nothing needs to do, if it's currently in ProcessKeyEvent()
   // handler, which will send commit text to webkit later. Otherwise,
   // we need send it here.
   // It's possible that commit signal is fired without a key event, for
@@ skipping 157 matching lines @@
     GtkWidget* widget, GtkIMContextWrapper* self) {
   self->HandleHostViewRealize(widget);
 }
 
 void GtkIMContextWrapper::HandleHostViewUnrealizeThunk(
     GtkWidget* widget, GtkIMContextWrapper* self) {
   self->HandleHostViewUnrealize();
 }
 
 }  // namespace content