Move PathExists to base namespace.

chrome/browser/extensions/api/storage/settings_frontend_unittest.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/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/strings/stringprintf.h"
@@ skipping 147 matching lines @@
       extensions::ExtensionSystem::Get(profile_.get())->extension_service();
   static_cast<extensions::settings_test_util::MockExtensionService*>(esi)->
       AddExtensionWithId(id, Manifest::TYPE_EXTENSION);
 
   ValueStore* storage = util::GetStorage(id, frontend_.get());
 
   {
     StringValue bar("bar");
     ValueStore::WriteResult result = storage->Set(DEFAULTS, "foo", bar);
     ASSERT_FALSE(result->HasError());
-    EXPECT_TRUE(file_util::PathExists(temp_dir_.path()));
+    EXPECT_TRUE(base::PathExists(temp_dir_.path()));
   }
 
   // Should need to both clear the database and delete the frontend for the
   // leveldb database to be deleted from disk.
   {
     ValueStore::WriteResult result = storage->Clear();
     ASSERT_FALSE(result->HasError());
-    EXPECT_TRUE(file_util::PathExists(temp_dir_.path()));
+    EXPECT_TRUE(base::PathExists(temp_dir_.path()));
   }
 
   frontend_.reset();
   base::MessageLoop::current()->RunUntilIdle();
   // TODO(kalman): Figure out why this fails, despite appearing to work.
   // Leaving this commented out rather than disabling the whole test so that the
   // deletion code paths are at least exercised.
-  //EXPECT_FALSE(file_util::PathExists(temp_dir_.path()));
+  //EXPECT_FALSE(base::PathExists(temp_dir_.path()));
 }
 
 TEST_F(ExtensionSettingsFrontendTest,
        QuotaLimitsEnforcedCorrectlyForSyncAndLocal) {
   const std::string id = "ext";
   ExtensionServiceInterface* esi =
       extensions::ExtensionSystem::Get(profile_.get())->extension_service();
   static_cast<extensions::settings_test_util::MockExtensionService*>(esi)->
       AddExtensionWithId(id, Manifest::TYPE_EXTENSION);
 
@@ skipping 84 matching lines @@
 
   frontend_->RunWithStorage(
       id, settings::SYNC, base::Bind(&UnlimitedSyncStorageTestCallback));
   frontend_->RunWithStorage(
       id, settings::LOCAL, base::Bind(&UnlimitedLocalStorageTestCallback));
 
   base::MessageLoop::current()->RunUntilIdle();
 }
 
 }  // namespace extensions