Delete some unused code found by -Wunused-function

chrome/browser/ui/webui/ntp/app_launcher_handler.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/webui/ntp/app_launcher_handler.h"
 
 #include <string>
 #include <vector>
 
 #include "base/auto_reset.h"
@@ skipping 45 matching lines @@
 #include "ui/gfx/codec/png_codec.h"
 #include "ui/gfx/favicon_size.h"
 
 using application_launch::LaunchParams;
 using application_launch::OpenApplication;
 using content::WebContents;
 using extensions::CrxInstaller;
 using extensions::Extension;
 using extensions::ExtensionPrefs;
 
-namespace {
-
 const net::UnescapeRule::Type kUnescapeRules =
     net::UnescapeRule::NORMAL | net::UnescapeRule::URL_SPECIAL_CHARS;
 
-extension_misc::AppLaunchBucket ParseLaunchSource(
-    const std::string& launch_source) {
-  int bucket_num = extension_misc::APP_LAUNCH_BUCKET_INVALID;
-  base::StringToInt(launch_source, &bucket_num);
-  extension_misc::AppLaunchBucket bucket =
-      static_cast<extension_misc::AppLaunchBucket>(bucket_num);
-  CHECK(bucket < extension_misc::APP_LAUNCH_BUCKET_BOUNDARY);
-  return bucket;
-}
-
-}  // namespace
-
 AppLauncherHandler::AppInstallInfo::AppInstallInfo() {}
 
 AppLauncherHandler::AppInstallInfo::~AppInstallInfo() {}
 
 AppLauncherHandler::AppLauncherHandler(ExtensionService* extension_service)
     : extension_service_(extension_service),
       ignore_changes_(false),
       attempted_bookmark_app_install_(false),
       has_loaded_apps_(false) {
 }
@@ skipping 848 matching lines @@
 
 ExtensionInstallPrompt* AppLauncherHandler::GetExtensionInstallPrompt() {
   if (!extension_install_ui_.get()) {
     Browser* browser = browser::FindBrowserWithWebContents(
         web_ui()->GetWebContents());
     extension_install_ui_.reset(
         chrome::CreateExtensionInstallPromptWithBrowser(browser));
   }
   return extension_install_ui_.get();
 }