[FileBrowser] Added DefaultAction dialog to choose default action.

chrome/browser/chromeos/extensions/file_browser_private_api.h

 // Copyright (c) 2012 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_CHROMEOS_EXTENSIONS_FILE_BROWSER_PRIVATE_API_H_
 #define CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_BROWSER_PRIVATE_API_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 95 matching lines @@
  protected:
   // AsyncExtensionFunction overrides.
   virtual bool RunImpl() OVERRIDE;
 
  private:
   class Executor;
 
   DECLARE_EXTENSION_FUNCTION_NAME("fileBrowserPrivate.executeTask");
 };
 
+// Implements the chrome.fileBrowserPrivate.setDefaultTask method.
+class SetDefaultTaskFileBrowserFunction : public SyncExtensionFunction {
+ public:
+  SetDefaultTaskFileBrowserFunction();
+  virtual ~SetDefaultTaskFileBrowserFunction();
+
+ protected:
+  // AsyncExtensionFunction overrides.
+  virtual bool RunImpl() OVERRIDE;
+
+  DECLARE_EXTENSION_FUNCTION_NAME("fileBrowserPrivate.setDefaultTask");
+};
+
 // Parent class for the chromium extension APIs for the file dialog.
 class FileBrowserFunction
     : public AsyncExtensionFunction {
  public:
   FileBrowserFunction();
 
  protected:
   typedef std::vector<GURL> UrlList;
   typedef std::vector<content::SelectedFileInfo> SelectedFileInfoList;
   typedef base::Callback<void(const SelectedFileInfoList&)>
@@ skipping 487 matching lines @@
 // Implements the chrome.fileBrowserPrivate.requestDirectoryRefresh method.
 class RequestDirectoryRefreshFunction : public SyncExtensionFunction {
  protected:
   virtual bool RunImpl() OVERRIDE;
  private:
   DECLARE_EXTENSION_FUNCTION_NAME(
       "fileBrowserPrivate.requestDirectoryRefresh");
 };
 
 #endif  // CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_BROWSER_PRIVATE_API_H_