FileAPI: Clean up around FileSystemBackend

webkit/browser/fileapi/copy_or_move_operation_delegate_unittest.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 <map>
 #include <queue>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/files/scoped_temp_dir.h"
@@ skipping 109 matching lines @@
                                     base_dir,
                                     base::MessageLoopProxy::current().get(),
                                     base::MessageLoopProxy::current().get(),
                                     NULL /* special storage policy */);
     quota_manager_proxy_ = new quota::MockQuotaManagerProxy(
         quota_manager_.get(), base::MessageLoopProxy::current().get());
     file_system_context_ =
         CreateFileSystemContextForTesting(quota_manager_proxy_.get(), base_dir);
 
     // Prepare the origin's root directory.
-    FileSystemBackend* mount_point_provider =
+    FileSystemBackend* backend =
         file_system_context_->GetFileSystemBackend(src_type_);
-    mount_point_provider->OpenFileSystem(
-        origin_, src_type_,
-        OPEN_FILE_SYSTEM_CREATE_IF_NONEXISTENT,
-        base::Bind(&ExpectOk));
-    mount_point_provider =
-        file_system_context_->GetFileSystemBackend(dest_type_);
+    backend->OpenFileSystem(origin_, src_type_,
+                            OPEN_FILE_SYSTEM_CREATE_IF_NONEXISTENT,
+                            base::Bind(&ExpectOk));
+    backend = file_system_context_->GetFileSystemBackend(dest_type_);
     if (dest_type_ == kFileSystemTypeTest) {
-      TestFileSystemBackend* test_provider =
-          static_cast<TestFileSystemBackend*>(mount_point_provider);
+      TestFileSystemBackend* test_backend =
+          static_cast<TestFileSystemBackend*>(backend);
       scoped_ptr<CopyOrMoveFileValidatorFactory> factory(
           new TestValidatorFactory);
-      test_provider->set_require_copy_or_move_validator(true);
-      test_provider->InitializeCopyOrMoveFileValidatorFactory(factory.Pass());
+      test_backend->set_require_copy_or_move_validator(true);
+      test_backend->InitializeCopyOrMoveFileValidatorFactory(factory.Pass());
     }
-    mount_point_provider->OpenFileSystem(
-        origin_, dest_type_,
-        OPEN_FILE_SYSTEM_CREATE_IF_NONEXISTENT,
-        base::Bind(&ExpectOk));
+    backend->OpenFileSystem(origin_, dest_type_,
+                            OPEN_FILE_SYSTEM_CREATE_IF_NONEXISTENT,
+                            base::Bind(&ExpectOk));
     base::MessageLoop::current()->RunUntilIdle();
 
     // Grant relatively big quota initially.
     quota_manager_->SetQuota(origin_,
                              FileSystemTypeToQuotaStorageType(src_type_),
                              1024 * 1024);
     quota_manager_->SetQuota(origin_,
                              FileSystemTypeToQuotaStorageType(dest_type_),
                              1024 * 1024);
   }
@@ skipping 366 matching lines @@
     {false, FILE_PATH_LITERAL("file 0"), 38},
     {false, FILE_PATH_LITERAL("file 3"), 0},
   };
 
   helper.VerifyTestCaseFiles(dest,
                              kMoveDirResultCases,
                              arraysize(kMoveDirResultCases));
 }
 
 }  // namespace fileapi