DevTools: Add support for adding folders to DevTools workspace with drag and drop (browser part)

chrome/browser/devtools/devtools_file_helper.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_DEVTOOLS_DEVTOOLS_FILE_HELPER_H_
 #define CHROME_BROWSER_DEVTOOLS_DEVTOOLS_FILE_HELPER_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 53 matching lines @@
   // The |url| can be associated with a file via calling Save method.
   // If the Save method has not been called for this |url|, then
   // Append method does nothing.
   void Append(const std::string& url,
               const std::string& content,
               const AppendCallback& callback);
 
   // Shows select folder dialog.
   // If user cancels folder selection, passes empty FileSystem struct to
   // |callback|.
-  // If selected folder contains magic file, grants renderer read/write
+  // Shows infobar by means of |show_info_bar_callback| to let the user decide
+  // whether to grant security permissions or not.
+  // If user allows adding file system in infobar, grants renderer read/write
   // permissions, registers isolated file system for it and passes FileSystem
   // struct to |callback|. Saves file system path to prefs.
-  // If selected folder does not contain magic file, passes error string to
+  // If user denies adding file system in infobar, passes error string to
   // |callback|.
   void AddFileSystem(const AddFileSystemCallback& callback,
                      const ShowInfoBarCallback& show_info_bar_callback);
 
+  // Upgrades dragged file system permissions to a read-write access.
+  // Shows infobar by means of |show_info_bar_callback| to let the user decide
+  // whether to grant security permissions or not.
+  // If user allows adding file system in infobar, grants renderer read/write
+  // permissions, registers isolated file system for it and passes FileSystem
+  // struct to |callback|. Saves file system path to prefs.
+  // If user denies adding file system in infobar, passes error string to
+  // |callback|.
+  void UpgradeDraggedFileSystemPermissions(
+      const std::string& file_system_url,
+      const AddFileSystemCallback& callback,
+      const ShowInfoBarCallback& show_info_bar_callback);
+
   // Loads file system paths from prefs, grants permissions and registers
   // isolated file system for those of them that contain magic file and passes
   // FileSystem structs for registered file systems to |callback|.
   void RequestFileSystems(const RequestFileSystemsCallback& callback);
 
   // Removes isolated file system for given |file_system_path|.
   void RemoveFileSystem(const std::string& file_system_path);
 
   // Returns whether access to the folder on given |file_system_path| was
   // granted.
@@ skipping 19 matching lines @@
 
   content::WebContents* web_contents_;
   Profile* profile_;
   typedef std::map<std::string, base::FilePath> PathsMap;
   PathsMap saved_files_;
   base::WeakPtrFactory<DevToolsFileHelper> weak_factory_;
   DISALLOW_COPY_AND_ASSIGN(DevToolsFileHelper);
 };
 
 #endif  // CHROME_BROWSER_DEVTOOLS_DEVTOOLS_FILE_HELPER_H_