Add Worker support for FileSystem API.

chrome/common/file_system/webfilesystem_callback_dispatcher.cc

Index: chrome/common/file_system/webfilesystem_callback_dispatcher.cc
diff --git a/chrome/common/file_system/webfilesystem_callback_dispatcher.cc b/chrome/common/file_system/webfilesystem_callback_dispatcher.cc
new file mode 100644
index 0000000000000000000000000000000000000000..c68ff188ddf2a686b33f807abc9c7296d09b321f
--- /dev/null
+++ b/chrome/common/file_system/webfilesystem_callback_dispatcher.cc
@@ -0,0 +1,82 @@
+// 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.
+
+#include "chrome/common/file_system/webfilesystem_callback_dispatcher.h"
+
+#include "base/file_util_proxy.h"
+#include "base/utf_string_conversions.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebFileInfo.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebFileSystem.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebFileSystemCallbacks.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebString.h"
+#include "webkit/glue/webkit_glue.h"
+
+using WebKit::WebFileInfo;
+using WebKit::WebFileSystemCallbacks;
+using WebKit::WebFileSystemEntry;
+using WebKit::WebString;
+using WebKit::WebVector;
+
+namespace {
+
+WebKit::WebFileError PlatformFileErrorToWebFileError(
+    base::PlatformFileError error_code) {
+  switch (error_code) {
+    case base::PLATFORM_FILE_ERROR_NOT_FOUND:
+      return WebKit::WebFileErrorNotFound;
+    case base::PLATFORM_FILE_ERROR_INVALID_OPERATION:
+    case base::PLATFORM_FILE_ERROR_EXISTS:
+    case base::PLATFORM_FILE_ERROR_NOT_A_DIRECTORY:
+      return WebKit::WebFileErrorInvalidModification;
+    case base::PLATFORM_FILE_ERROR_ACCESS_DENIED:
+      return WebKit::WebFileErrorNoModificationAllowed;
+    case base::PLATFORM_FILE_ERROR_FAILED:
+      return WebKit::WebFileErrorInvalidState;
+    case base::PLATFORM_FILE_ERROR_ABORT:
+      return WebKit::WebFileErrorAbort;
+    default:
+      return WebKit::WebFileErrorInvalidModification;
+  }
+}
+
+}
+
+WebFileSystemCallbackDispatcher::WebFileSystemCallbackDispatcher(
+    WebFileSystemCallbacks* callbacks)
+    : callbacks_(callbacks) {
+  DCHECK(callbacks_);
+}
+
+void WebFileSystemCallbackDispatcher::DidSucceed() {
+  callbacks_->didSucceed();
+}
+
+void WebFileSystemCallbackDispatcher::DidReadMetadata(
+    const base::PlatformFileInfo& file_info) {
+  WebFileInfo web_file_info;
+  web_file_info.modificationTime = file_info.last_modified.ToDoubleT();
+  callbacks_->didReadMetadata(web_file_info);
+}
+
+void WebFileSystemCallbackDispatcher::DidReadDirectory(
+    const std::vector<base::file_util_proxy::Entry>& entries, bool has_more) {
+  WebVector<WebFileSystemEntry> file_system_entries(entries.size());
+  for (size_t i = 0; i < entries.size(); i++) {
+    file_system_entries[i].name =
+        webkit_glue::FilePathStringToWebString(entries[i].name);
+    file_system_entries[i].isDirectory = entries[i].is_directory;
+  }
+  callbacks_->didReadDirectory(file_system_entries, has_more);
+}
+
+void WebFileSystemCallbackDispatcher::DidOpenFileSystem(
+    const std::string& name, const FilePath& root_path) {
+  callbacks_->didOpenFileSystem(UTF8ToUTF16(name),
+                                webkit_glue::FilePathToWebString(root_path));
+}
+
+void WebFileSystemCallbackDispatcher::DidFail(
+    base::PlatformFileError error_code) {
+  callbacks_->didFail(PlatformFileErrorToWebFileError(error_code));
+}