browser: Put simple_message_box.h and chrome_web_contents_view_delegate.h into chrome namespace.

chrome/browser/ui/gtk/simple_message_box_gtk.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 "chrome/browser/ui/simple_message_box.h"
 
 #include "base/message_loop.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/ui/gtk/gtk_util.h"
 
@@ skipping 23 matching lines @@
 int g_dialog_response;
 
 void OnDialogResponse(GtkWidget* widget, int response, void* user_data) {
   g_dialog_response = response;
   gtk_widget_destroy(widget);
   MessageLoop::current()->QuitNow();
 }
 
 }  // namespace
 
-namespace browser {
+namespace chrome {
 
 MessageBoxResult ShowMessageBox(gfx::NativeWindow parent,
                                 const string16& title,
                                 const string16& message,
                                 MessageBoxType type) {
   GtkMessageType gtk_message_type = GTK_MESSAGE_OTHER;
   GtkButtonsType gtk_buttons_type = GTK_BUTTONS_OK;
   if (type == MESSAGE_BOX_TYPE_QUESTION) {
     gtk_message_type = GTK_MESSAGE_QUESTION;
     gtk_buttons_type = GTK_BUTTONS_YES_NO;
@@ skipping 20 matching lines @@
     return g_dialog_response == GTK_RESPONSE_YES ?
         MESSAGE_BOX_RESULT_YES : MESSAGE_BOX_RESULT_NO;
   }
 
   gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_OK);
   g_signal_connect(dialog, "response", G_CALLBACK(gtk_widget_destroy), NULL);
   gtk_util::ShowDialog(dialog);
   return MESSAGE_BOX_RESULT_YES;
 }
 
-}  // namespace browser
+}  // namespace chrome