fileapi: Rename FileSystemMountProvider to FileSystemBackend

webkit/browser/fileapi/local_file_system_operation_write_unittest.cc

Index: webkit/browser/fileapi/local_file_system_operation_write_unittest.cc
diff --git a/webkit/browser/fileapi/local_file_system_operation_write_unittest.cc b/webkit/browser/fileapi/local_file_system_operation_write_unittest.cc
index e5a879c6e13acefe6e94e5f4a9c64e72cc6cb282..8219d194ec94b0f8ff4d368747ba83cfeb9a8783 100644
--- a/webkit/browser/fileapi/local_file_system_operation_write_unittest.cc
+++ b/webkit/browser/fileapi/local_file_system_operation_write_unittest.cc
@@ -25,7 +25,7 @@
 #include "webkit/browser/fileapi/local_file_util.h"
 #include "webkit/browser/fileapi/mock_file_change_observer.h"
 #include "webkit/browser/fileapi/mock_file_system_context.h"
-#include "webkit/browser/fileapi/test_mount_point_provider.h"
+#include "webkit/browser/fileapi/test_file_system_backend.h"
 #include "webkit/browser/quota/mock_quota_manager.h"
 #include "webkit/common/blob/blob_data.h"
 #include "webkit/common/fileapi/file_system_util.h"
@@ -80,8 +80,8 @@ class LocalFileSystemOperationWriteTest
         URLForPath(virtual_path_), true /* exclusive */,
         base::Bind(&AssertStatusEq, base::PLATFORM_FILE_OK));
 
-    static_cast<TestMountPointProvider*>(
-        file_system_context_->GetMountPointProvider(kFileSystemType))
+    static_cast<TestFileSystemBackend*>(
+        file_system_context_->GetFileSystemBackend(kFileSystemType))
         ->AddFileChangeObserver(change_observer());
   }