FileSystem code cleanup 1st cut - does some class renaming.

Renamed FileSystemQuota to FileSystemQuotaManager.
Removed PlatFormErrorToFileError in simple_file_system.cc (in favor of webkit_flue::PlatformErrorToFileError)

BUG=60243
TEST=none

Review URL: http://codereview.chromium.org/4017007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@65506 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 52 insertions, 0 deletions

diff --git a/webkit/fileapi/file_system_quota_manager.h b/webkit/fileapi/file_system_quota_manager.h
new file mode 100644
index 0000000..f1c94e1
--- /dev/null
+++ b/webkit/fileapi/file_system_quota_manager.h
@@ -0,0 +1,52 @@
+// Copyright (c) 2010 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.
+
+#ifndef WEBKIT_FILEAPI_FILE_SYSTEM_QUOTA_MANAGER_H_
+#define WEBKIT_FILEAPI_FILE_SYSTEM_QUOTA_MANAGER_H_
+
+#include <set>
+
+#include "base/basictypes.h"
+#include "googleurl/src/gurl.h"
+
+namespace fileapi {
+
+// A quota manager for FileSystem. For now it has little implementation
+// and just allows unlimited quota for apps.
+class FileSystemQuotaManager {
+ public:
+  static const int64 kUnknownSize;
+
+  // If |allow_file_access_from_files| is true, unlimited access is granted
+  // for file:/// URLs.
+  // If |unlimited_quota| is true, unlimited access is granted for every
+  // origin.  This flag must be used only for testing.
+  FileSystemQuotaManager(bool allow_file_access_from_files,
+                         bool unlimited_quota);
+  ~FileSystemQuotaManager();
+
+  // Checks if the origin can grow its usage by |growth| bytes.
+  // This only performs in-memory check and returns immediately.
+  // For now it just returns false for any origins (regardless of the size)
+  // that are not in the in-memory unlimited_quota_origins map.
+  bool CheckOriginQuota(const GURL& origin, int64 growth);
+
+  // Maintains origins in memory that are allowed to have unlimited quota.
+  void SetOriginQuotaUnlimited(const GURL& origin);
+  void ResetOriginQuotaUnlimited(const GURL& origin);
+  bool CheckIfOriginGrantedUnlimitedQuota(const GURL& origin);
+
+ private:
+  // For some extensions/apps we allow unlimited quota.
+  std::set<GURL> unlimited_quota_origins_;
+
+  const bool allow_file_access_from_files_;
+  const bool unlimited_quota_;
+
+  DISALLOW_COPY_AND_ASSIGN(FileSystemQuotaManager);
+};
+
+}  // namespace fileapi
+
+#endif  // WEBKIT_FILEAPI_FILE_SYSTEM_QUOTA_MANAGER_H_