Added new fileBrowserPrivate and fileHandler extension APIs

chrome/browser/extensions/extension_file_browser_private_api.h

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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 CHROME_BROWSER_EXTENSIONS_EXTENSION_FILE_BROWSER_PRIVATE_API_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_FILE_BROWSER_PRIVATE_API_H_
 #pragma once
 
 #include <string>
 
 #include "base/file_path.h"
 #include "chrome/browser/extensions/extension_function.h"
+#include "googleurl/src/url_util.h"
 #include "webkit/fileapi/file_system_callback_dispatcher.h"
 
-// Implements the Chrome Extension local File API.
+// Implements the chrome.fileBrowserPrivate.requestLocalFileSystem method.
+class RequestLocalFileSystemFunctionBase : public AsyncExtensionFunction {
+ protected:
+  friend class LocalFileSystemCallbackDispatcher;
+  // AsyncExtensionFunction overrides.
+  virtual bool RunImpl() OVERRIDE;
+  void RespondSuccessOnUIThread(const std::string& name,
+                                const FilePath& path,
+                                const GURL& file_url);
+  void RespondFailedOnUIThread(base::PlatformFileError error_code);
+  void RequestOnFileThread(const GURL& source_url, const GURL& file_url);
+};
+
+// Implements the chrome.fileBrowserPrivate.requestLocalFileSystem method.
 class RequestLocalFileSystemFunction
-    : public AsyncExtensionFunction {
- public:
-  RequestLocalFileSystemFunction();
+    : public RequestLocalFileSystemFunctionBase {
+ private:
+  DECLARE_EXTENSION_FUNCTION_NAME("fileBrowserPrivate.requestLocalFileSystem");
+};
 
+// Implements the chrome.fileBrowserPrivate.getFileTasks method.
+class GetFileTasksFileBrowserFunction : public AsyncExtensionFunction {
  protected:
-  virtual ~RequestLocalFileSystemFunction();
-
   // AsyncExtensionFunction overrides.
   virtual bool RunImpl() OVERRIDE;
 
  private:
-  friend class LocalFileSystemCallbackDispatcher;
-  void RespondSuccessOnUIThread(const std::string& name,
-                                const FilePath& path);
-  void RespondFailedOnUIThread(base::PlatformFileError error_code);
 
-  DECLARE_EXTENSION_FUNCTION_NAME("fileBrowserPrivate.requestLocalFileSystem");
+  DECLARE_EXTENSION_FUNCTION_NAME("fileBrowserPrivate.getFileTasks");
+};
+
+
+// Implements the chrome.fileBrowserPrivate.executeTask method.
+class ExecuteTasksFileBrowserFunction : public AsyncExtensionFunction {
+ protected:
+  // AsyncExtensionFunction overrides.
+  virtual bool RunImpl() OVERRIDE;
+
+ private:
+  // Grants access for local file system element represented by
+  // |origin_file_url| from handler extension identified by
+  // |handler_extension_id|. It also modifies |origin_file_url| to make it
+  // usable within handler extension - replaces origin extension id with
+  // handlers's.
+  bool GrantLocalFileSystemAccess(const GURL& origin_file_url,
+                                  const std::string& handler_extension_id,
+                                  GURL* handler_file_url);
+
+  // Executes context menu tasks for each element of |files_list|.
+  bool ExecuteContextMenuTasks(const std::string& handler_extension_id,
+                               const std::string& action_id,
+                               ListValue* files_list);
+  DECLARE_EXTENSION_FUNCTION_NAME("fileBrowserPrivate.executeTask");
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_FILE_BROWSER_PRIVATE_API_H_