Move PathExists to base namespace.

chrome/common/extensions/background_info.cc

 // Copyright (c) 2013 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/common/extensions/background_info.h"
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/lazy_instance.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 246 matching lines @@
 }
 
 bool BackgroundManifestHandler::Validate(
     const Extension* extension,
     std::string* error,
     std::vector<InstallWarning>* warnings) const {
   // Validate that background scripts exist.
   const std::vector<std::string>& background_scripts =
       extensions::BackgroundInfo::GetBackgroundScripts(extension);
   for (size_t i = 0; i < background_scripts.size(); ++i) {
-    if (!file_util::PathExists(
+    if (!base::PathExists(
             extension->GetResource(background_scripts[i]).GetFilePath())) {
       *error = l10n_util::GetStringFUTF8(
           IDS_EXTENSION_LOAD_BACKGROUND_SCRIPT_FAILED,
           UTF8ToUTF16(background_scripts[i]));
       return false;
     }
   }
 
   // Validate background page location, except for hosted apps, which should use
   // an external URL. Background page for hosted apps are verified when the
   // extension is created (in Extension::InitFromValue)
   if (extensions::BackgroundInfo::HasBackgroundPage(extension) &&
       !extension->is_hosted_app() && background_scripts.empty()) {
     base::FilePath page_path =
         extension_file_util::ExtensionURLToRelativeFilePath(
             extensions::BackgroundInfo::GetBackgroundURL(extension));
     const base::FilePath path = extension->GetResource(page_path).GetFilePath();
-    if (path.empty() || !file_util::PathExists(path)) {
+    if (path.empty() || !base::PathExists(path)) {
       *error =
           l10n_util::GetStringFUTF8(
               IDS_EXTENSION_LOAD_BACKGROUND_PAGE_FAILED,
               page_path.LossyDisplayName());
       return false;
     }
   }
   return true;
 }
 
 bool BackgroundManifestHandler::AlwaysParseForType(Manifest::Type type) const {
   return type == Manifest::TYPE_PLATFORM_APP;
 }
 
 const std::vector<std::string> BackgroundManifestHandler::Keys() const {
   static const char* keys[] = {
     keys::kBackgroundAllowJsAccess,
     keys::kBackgroundPage,
     keys::kBackgroundPageLegacy,
     keys::kBackgroundPersistent,
     keys::kBackgroundScripts,
     keys::kPlatformAppBackgroundPage,
     keys::kPlatformAppBackgroundScripts
   };
   return std::vector<std::string>(keys, keys + arraysize(keys));
 }
 
 }  // namespace extensions