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

webkit/fileapi/fileapi_file_util.h

Index: webkit/fileapi/fileapi_file_util.h
diff --git a/webkit/fileapi/file_system_file_util.h b/webkit/fileapi/fileapi_file_util.h
similarity index 88%
rename from webkit/fileapi/file_system_file_util.h
rename to webkit/fileapi/fileapi_file_util.h
index 8a46fbdb6d5974369ce2d8e7b12bc76663879425..630ad25f9636ee1b6a17f4d8cd995a76493d19c1 100644
--- a/webkit/fileapi/file_system_file_util.h
+++ b/webkit/fileapi/fileapi_file_util.h
@@ -2,21 +2,14 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef WEBKIT_FILEAPI_FILE_SYSTEM_FILE_UTIL_H_
-#define WEBKIT_FILEAPI_FILE_SYSTEM_FILE_UTIL_H_
+#ifndef WEBKIT_FILEAPI_FILE_UTIL_H_
+#define WEBKIT_FILEAPI_FILE_UTIL_H_
 
-#include "base/callback.h"
 #include "base/file_path.h"
-#include "base/file_util.h"
 #include "base/file_util_proxy.h"
-#include "base/memory/ref_counted.h"
 #include "base/platform_file.h"
-#include "base/tracked_objects.h"
-#include "webkit/fileapi/file_system_types.h"
 
 namespace base {
-struct PlatformFileInfo;
-class MessageLoopProxy;
 class Time;
 }
 
@@ -44,10 +37,10 @@ class FileSystemOperationContext;
 // meta logic by using other virtual methods.
 //  (*2) All non-virtual methods: Copy, Move, Delete, DeleteDirectoryRecursive,
 //  PerformCommonCheckAndPreparationForMoveAndCopy and CopyOrMoveDirectory.
-class FileSystemFileUtil {
+class FileApiFileUtil {
  public:
-  FileSystemFileUtil() {}
-  virtual ~FileSystemFileUtil() {}
+  FileApiFileUtil() {}
+  virtual ~FileApiFileUtil() {}
 
   // Creates or opens a file with the given flags.  It is invalid to pass NULL
   // for the callback.
@@ -59,12 +52,12 @@ class FileSystemFileUtil {
       const FilePath& file_path,
       int file_flags,
       PlatformFile* file_handle,
-      bool* created);
+      bool* created) = 0;
 
   // Close the given file handle.
   virtual PlatformFileError Close(
       FileSystemOperationContext* context,
-      PlatformFile);
+      PlatformFile) = 0;
 
   // Ensures that the given |file_path| exist.  This creates a empty new file
   // at |file_path| if the |file_path| does not exist.
@@ -77,7 +70,7 @@ class FileSystemFileUtil {
   // reasons, |created| is set false and |error code| indicates the error.
   virtual PlatformFileError EnsureFileExists(
       FileSystemOperationContext* context,
-      const FilePath& file_path, bool* created);
+      const FilePath& file_path, bool* created) = 0;
 
   // Maps |virtual_path| given |context| into |local_path| which represents
   // physical file location on the host OS. This may not always make sense for
@@ -85,7 +78,7 @@ class FileSystemFileUtil {
   virtual PlatformFileError GetLocalFilePath(
       FileSystemOperationContext* context,
       const FilePath& virtual_path,
-      FilePath* local_path);
+      FilePath* local_path) = 0;
 
   // Retrieves the information about a file.  It is invalid to pass NULL for the
   // callback.
@@ -93,13 +86,13 @@ class FileSystemFileUtil {
       FileSystemOperationContext* context,
       const FilePath& file_,
       base::PlatformFileInfo* file_info,
-      FilePath* platform_path);
+      FilePath* platform_path) = 0;
 
   // Reads the filenames in |file_path|.
   virtual PlatformFileError ReadDirectory(
       FileSystemOperationContext* context,
       const FilePath& file_path,
-      std::vector<base::FileUtilProxy::Entry>* entries);
+      std::vector<base::FileUtilProxy::Entry>* entries) = 0;
 
   // Creates directory at given path. It's an error to create
   // if |exclusive| is true and dir already exists.
@@ -107,22 +100,22 @@ class FileSystemFileUtil {
       FileSystemOperationContext* context,
       const FilePath& file_path,
       bool exclusive,
-      bool recursive);
+      bool recursive) = 0;
 
   // Copies or moves a single file.
   virtual PlatformFileError CopyOrMoveFile(
       FileSystemOperationContext* context,
       const FilePath& src_file_path,
       const FilePath& dest_file_path,
-      bool copy);
+      bool copy) = 0;
 
   // Copies in a single file from a different filesystem.  The src_file_path is
   // a true local platform path, regardless of which subclass of
-  // FileSystemFileUtil is being invoked.
+  // FileApiFileUtil is being invoked.
   virtual PlatformFileError CopyInForeignFile(
         FileSystemOperationContext* context,
         const FilePath& src_file_path,
-        const FilePath& dest_file_path);
+        const FilePath& dest_file_path) = 0;
 
   // Copies a file or a directory from |src_file_path| to |dest_file_path|.
   //
@@ -176,7 +169,7 @@ class FileSystemFileUtil {
   // non-virtual).
   virtual PlatformFileError DeleteFile(
       FileSystemOperationContext* unused,
-      const FilePath& file_path);
+      const FilePath& file_path) = 0;
 
   // Deletes a single empty directory.
   // It assumes the given path points an empty directory.
@@ -185,14 +178,14 @@ class FileSystemFileUtil {
   // non-virtual).
   virtual PlatformFileError DeleteSingleDirectory(
       FileSystemOperationContext* unused,
-      const FilePath& file_path);
+      const FilePath& file_path) = 0;
 
   // Touches a file. The callback can be NULL.
   virtual PlatformFileError Touch(
       FileSystemOperationContext* context,
       const FilePath& file_path,
       const base::Time& last_access_time,
-      const base::Time& last_modified_time);
+      const base::Time& last_modified_time) = 0;
 
   // Truncates a file to the given length. If |length| is greater than the
   // current length of the file, the file will be extended with zeroes.
@@ -200,19 +193,19 @@ class FileSystemFileUtil {
   virtual PlatformFileError Truncate(
       FileSystemOperationContext* context,
       const FilePath& path,
-      int64 length);
+      int64 length) = 0;
 
   virtual bool PathExists(
       FileSystemOperationContext* unused,
-      const FilePath& file_path);
+      const FilePath& file_path) = 0;
 
   virtual bool DirectoryExists(
       FileSystemOperationContext* unused,
-      const FilePath& file_path);
+      const FilePath& file_path) = 0;
 
   virtual bool IsDirectoryEmpty(
       FileSystemOperationContext* unused,
-      const FilePath& file_path);
+      const FilePath& file_path) = 0;
 
   // It will be implemented by each subclass such as FileSystemFileEnumerator.
   class AbstractFileEnumerator {
@@ -231,12 +224,12 @@ class FileSystemFileUtil {
   };
 
   // Returns a pointer to a new instance of AbstractFileEnumerator which is
-  // implemented for each FileUtil subclass. The instance needs to be freed
-  // by the caller, and its lifetime should not extend past when the current
-  // call returns to the main FILE message loop.
+  // implemented for each FileApiFileUtil subclass. The instance needs to be
+  // freed by the caller, and its lifetime should not extend past when the
+  // current call returns to the main FILE message loop.
   virtual AbstractFileEnumerator* CreateFileEnumerator(
       FileSystemOperationContext* unused,
-      const FilePath& root_path);
+      const FilePath& root_path) = 0;
 
  protected:
   // Deletes a directory and all entries under the directory.
@@ -278,9 +271,9 @@ class FileSystemFileUtil {
       const FilePath& dest_file_path,
       bool copy);
 
-  DISALLOW_COPY_AND_ASSIGN(FileSystemFileUtil);
+  DISALLOW_COPY_AND_ASSIGN(FileApiFileUtil);
 };
 
 }  // namespace fileapi
 
-#endif  // WEBKIT_FILEAPI_FILE_SYSTEM_FILE_UTIL_H_
+#endif  // WEBKIT_FILEAPI_FILE_UTIL_H_