Add a utility method that returns a list of origins that have FileSystem storage.

The method is to be used to retrieve total amount of usage for a type, to collect all the origins at startup after initialization etc.

BUG=none
TEST=FileSystemUtilListOriginsTest

Review URL: http://codereview.chromium.org/6524038

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@75582 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 22 insertions, 1 deletions

diff --git a/webkit/fileapi/file_system_path_manager.cc b/webkit/fileapi/file_system_path_manager.cc
index 8aee5d5..8ef0631 100644
--- a/webkit/fileapi/file_system_path_manager.cc
+++ b/webkit/fileapi/file_system_path_manager.cc
@@ -4,12 +4,12 @@
 
 #include "webkit/fileapi/file_system_path_manager.h"
 
-#include "base/file_util.h"
 #include "base/rand_util.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "base/message_loop_proxy.h"
 #include "base/scoped_callback_factory.h"
+#include "base/scoped_ptr.h"
 #include "base/stringprintf.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
@@ -351,6 +351,27 @@ FilePath FileSystemPathManager::GetFileSystemBaseDirectoryForOriginAndType(
                   .AppendASCII(type_string);
 }
 
+FileSystemPathManager::OriginEnumerator::OriginEnumerator(
+    const FilePath& base_path)
+    : enumerator_(base_path, false /* recursive */,
+                  file_util::FileEnumerator::DIRECTORIES) {
+}
+
+std::string FileSystemPathManager::OriginEnumerator::Next() {
+  current_ = enumerator_.Next();
+  return FilePathStringToASCII(current_.BaseName().value());
+}
+
+bool FileSystemPathManager::OriginEnumerator::HasTemporary() {
+  return !current_.empty() && file_util::DirectoryExists(current_.AppendASCII(
+      FileSystemPathManager::kTemporaryName));
+}
+
+bool FileSystemPathManager::OriginEnumerator::HasPersistent() {
+  return !current_.empty() && file_util::DirectoryExists(current_.AppendASCII(
+      FileSystemPathManager::kPersistentName));
+}
+
 }  // namespace fileapi
 
 COMPILE_ASSERT(int(WebFileSystem::TypeTemporary) == \