[Refactor] to rename and re-layer the file_util stack layers.

webkit/fileapi/local_file_util.cc

Index: webkit/fileapi/local_file_util.cc
diff --git a/webkit/fileapi/local_file_system_file_util.cc b/webkit/fileapi/local_file_util.cc
similarity index 87%
rename from webkit/fileapi/local_file_system_file_util.cc
rename to webkit/fileapi/local_file_util.cc
index 5d14644648040eb6c9d3671a24fbcb1b71a8ebda..5d321880d71b57c5885a05fad65fb3333ba9b3b6 100644
--- a/webkit/fileapi/local_file_system_file_util.cc
+++ b/webkit/fileapi/local_file_util.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "webkit/fileapi/local_file_system_file_util.h"
+#include "webkit/fileapi/local_file_util.h"
 
 #include "base/file_util_proxy.h"
 #include "googleurl/src/gurl.h"
@@ -14,15 +14,14 @@
 
 namespace fileapi {
 
-LocalFileSystemFileUtil::LocalFileSystemFileUtil(
-    FileSystemFileUtil* underlying_file_util)
-    : underlying_file_util_(underlying_file_util) {
+LocalFileUtil::LocalFileUtil(FileUtil* underlying_file_util)
+    : OverlayFileUtil(underlying_file_util) {
 }
 
-LocalFileSystemFileUtil::~LocalFileSystemFileUtil() {
+LocalFileUtil::~LocalFileUtil() {
 }
 
-PlatformFileError LocalFileSystemFileUtil::CreateOrOpen(
+PlatformFileError LocalFileUtil::CreateOrOpen(
     FileSystemOperationContext* context,
     const FilePath& file_path, int file_flags,
     PlatformFile* file_handle, bool* created) {
@@ -35,7 +34,7 @@ PlatformFileError LocalFileSystemFileUtil::CreateOrOpen(
       context, local_path, file_flags, file_handle, created);
 }
 
-PlatformFileError LocalFileSystemFileUtil::EnsureFileExists(
+PlatformFileError LocalFileUtil::EnsureFileExists(
     FileSystemOperationContext* context,
     const FilePath& file_path,
     bool* created) {
@@ -48,7 +47,7 @@ PlatformFileError LocalFileSystemFileUtil::EnsureFileExists(
       context, local_path, created);
 }
 
-PlatformFileError LocalFileSystemFileUtil::GetLocalFilePath(
+PlatformFileError LocalFileUtil::GetLocalFilePath(
     FileSystemOperationContext* context,
     const FilePath& virtual_path,
     FilePath* local_path) {
@@ -62,7 +61,7 @@ PlatformFileError LocalFileSystemFileUtil::GetLocalFilePath(
   return base::PLATFORM_FILE_OK;
 }
 
-PlatformFileError LocalFileSystemFileUtil::GetFileInfo(
+PlatformFileError LocalFileUtil::GetFileInfo(
     FileSystemOperationContext* context,
     const FilePath& file_path,
     base::PlatformFileInfo* file_info,
@@ -76,7 +75,7 @@ PlatformFileError LocalFileSystemFileUtil::GetFileInfo(
       context, local_path, file_info, platform_file_path);
 }
 
-PlatformFileError LocalFileSystemFileUtil::ReadDirectory(
+PlatformFileError LocalFileUtil::ReadDirectory(
     FileSystemOperationContext* context,
     const FilePath& file_path,
     std::vector<base::FileUtilProxy::Entry>* entries) {
@@ -90,7 +89,7 @@ PlatformFileError LocalFileSystemFileUtil::ReadDirectory(
       context, local_path, entries);
 }
 
-PlatformFileError LocalFileSystemFileUtil::CreateDirectory(
+PlatformFileError LocalFileUtil::CreateDirectory(
     FileSystemOperationContext* context,
     const FilePath& file_path,
     bool exclusive,
@@ -104,7 +103,7 @@ PlatformFileError LocalFileSystemFileUtil::CreateDirectory(
       context, local_path, exclusive, recursive);
 }
 
-PlatformFileError LocalFileSystemFileUtil::CopyOrMoveFile(
+PlatformFileError LocalFileUtil::CopyOrMoveFile(
     FileSystemOperationContext* context,
     const FilePath& src_file_path,
     const FilePath& dest_file_path,
@@ -125,7 +124,7 @@ PlatformFileError LocalFileSystemFileUtil::CopyOrMoveFile(
 }
 
 // TODO(dmikurube): Make it independent from CopyOrMoveFile.
-PlatformFileError LocalFileSystemFileUtil::CopyInForeignFile(
+PlatformFileError LocalFileUtil::CopyInForeignFile(
     FileSystemOperationContext* context,
     const FilePath& src_file_path,
     const FilePath& dest_file_path) {
@@ -140,7 +139,7 @@ PlatformFileError LocalFileSystemFileUtil::CopyInForeignFile(
       context, src_file_path, local_dest_path, true);
 }
 
-PlatformFileError LocalFileSystemFileUtil::DeleteFile(
+PlatformFileError LocalFileUtil::DeleteFile(
     FileSystemOperationContext* context,
     const FilePath& file_path) {
   FilePath local_path =
@@ -152,7 +151,7 @@ PlatformFileError LocalFileSystemFileUtil::DeleteFile(
       context, local_path);
 }
 
-PlatformFileError LocalFileSystemFileUtil::DeleteSingleDirectory(
+PlatformFileError LocalFileUtil::DeleteSingleDirectory(
     FileSystemOperationContext* context,
     const FilePath& file_path) {
   FilePath local_path =
@@ -164,7 +163,7 @@ PlatformFileError LocalFileSystemFileUtil::DeleteSingleDirectory(
       context, local_path);
 }
 
-PlatformFileError LocalFileSystemFileUtil::Touch(
+PlatformFileError LocalFileUtil::Touch(
     FileSystemOperationContext* context,
     const FilePath& file_path,
     const base::Time& last_access_time,
@@ -178,7 +177,7 @@ PlatformFileError LocalFileSystemFileUtil::Touch(
       context, local_path, last_access_time, last_modified_time);
 }
 
-PlatformFileError LocalFileSystemFileUtil::Truncate(
+PlatformFileError LocalFileUtil::Truncate(
     FileSystemOperationContext* context,
     const FilePath& file_path,
     int64 length) {
@@ -191,7 +190,7 @@ PlatformFileError LocalFileSystemFileUtil::Truncate(
       context, local_path, length);
 }
 
-bool LocalFileSystemFileUtil::PathExists(
+bool LocalFileUtil::PathExists(
     FileSystemOperationContext* context,
     const FilePath& file_path) {
   FilePath local_path =
@@ -203,7 +202,7 @@ bool LocalFileSystemFileUtil::PathExists(
       context, local_path);
 }
 
-bool LocalFileSystemFileUtil::DirectoryExists(
+bool LocalFileUtil::DirectoryExists(
     FileSystemOperationContext* context,
     const FilePath& file_path) {
   FilePath local_path =
@@ -215,7 +214,7 @@ bool LocalFileSystemFileUtil::DirectoryExists(
       context, local_path);
 }
 
-bool LocalFileSystemFileUtil::IsDirectoryEmpty(
+bool LocalFileUtil::IsDirectoryEmpty(
     FileSystemOperationContext* context,
     const FilePath& file_path) {
   FilePath local_path =
@@ -228,7 +227,7 @@ bool LocalFileSystemFileUtil::IsDirectoryEmpty(
 }
 
 class LocalFileSystemFileEnumerator
-    : public FileSystemFileUtil::AbstractFileEnumerator {
+    : public FileUtil::AbstractFileEnumerator {
  public:
   LocalFileSystemFileEnumerator(const FilePath& platform_root_path,
                                 const FilePath& virtual_root_path,
@@ -266,8 +265,7 @@ bool LocalFileSystemFileEnumerator::IsDirectory() {
   return file_util::FileEnumerator::IsDirectory(file_util_info);
 }
 
-FileSystemFileUtil::AbstractFileEnumerator*
-LocalFileSystemFileUtil::CreateFileEnumerator(
+FileUtil::AbstractFileEnumerator* LocalFileUtil::CreateFileEnumerator(
     FileSystemOperationContext* context,
     const FilePath& root_path) {
   FilePath local_path =
@@ -282,7 +280,7 @@ LocalFileSystemFileUtil::CreateFileEnumerator(
           file_util::FileEnumerator::DIRECTORIES));
 }
 
-FilePath LocalFileSystemFileUtil::GetLocalPath(
+FilePath LocalFileUtil::GetLocalPath(
     FileSystemOperationContext* context,
     const GURL& origin_url,
     FileSystemType type,