Delete some unused code found by -Wunused-function

chrome/browser/download/save_page_browsertest.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 "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
@@ skipping 35 matching lines @@
 #include "chrome/browser/download/save_package_file_picker.h"
 #endif
 
 using content::BrowserContext;
 using content::BrowserThread;
 using content::DownloadItem;
 using content::DownloadManager;
 using content::DownloadPersistentStoreInfo;
 using content::WebContents;
 
-namespace {
+const FilePath::CharType kTestDir[] = FILE_PATH_LITERAL("save_page");
 
-static const FilePath::CharType* kTestDir = FILE_PATH_LITERAL("save_page");
-
-static const char* kAppendedExtension =
+const char kAppendedExtension[] =
 #if defined(OS_WIN)
     ".htm";
 #else
     ".html";
 #endif
 
-void NullFunction() {
-}
-
-}  // namespace
-
 // Loosely based on logic in DownloadTestObserver.
 class DownloadItemCreatedObserver : public DownloadManager::Observer {
  public:
   explicit DownloadItemCreatedObserver(DownloadManager* manager)
       : waiting_(false), manager_(manager) {
     manager->AddObserver(this);
   }
 
   ~DownloadItemCreatedObserver() {
     if (manager_)
@@ skipping 564 matching lines @@
         content::NotificationService::AllSources());
   chrome::SavePage(browser());
   observer.Wait();
   CheckDownloadHistory(url, full_file_name, -1, DownloadItem::COMPLETE);
 
   EXPECT_TRUE(file_util::PathExists(full_file_name));
   int64 actual_file_size = -1;
   EXPECT_TRUE(file_util::GetFileSize(full_file_name, &actual_file_size));
   EXPECT_LE(kFileSizeMin, actual_file_size);
 }