Move WebUIMessageHandler to its own file in the public directory and put it in the content namesp...

chrome/browser/ui/webui/chromeos/keyboard_overlay_ui.cc

 // Copyright (c) 2011 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/webui/chromeos/keyboard_overlay_ui.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/memory/weak_ptr.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/input_method/input_method_manager.h"
 #include "chrome/browser/chromeos/input_method/xkeyboard.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/webui/chrome_url_data_manager.h"
 #include "chrome/browser/ui/webui/chrome_web_ui_data_source.h"
 #include "chrome/common/jstemplate_builder.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/web_contents.h"
+#include "content/public/browser/web_ui_message_handler.h"
 #include "grit/browser_resources.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 
 using chromeos::input_method::ModifierKey;
 using content::WebContents;
+using content::WebUIMessageHandler;
 
 namespace {
 
 struct ModifierToLabel {
   const ModifierKey modifier;
   const char* label;
 } kModifierToLabels[] = {
   {chromeos::input_method::kSearchKey, "search"},
   {chromeos::input_method::kLeftControlKey, "ctrl"},
   {chromeos::input_method::kLeftAltKey, "alt"},
@@ skipping 244 matching lines @@
 KeyboardOverlayUI::KeyboardOverlayUI(WebContents* contents)
     : HtmlDialogUI(contents) {
   Profile* profile = Profile::FromBrowserContext(contents->GetBrowserContext());
   KeyboardOverlayHandler* handler = new KeyboardOverlayHandler(profile);
   AddMessageHandler(handler);
 
   // Set up the chrome://keyboardoverlay/ source.
   profile->GetChromeURLDataManager()->AddDataSource(
       CreateKeyboardOverlayUIHTMLSource());
 }