Random clean up around Chrome OS file manager code.

chrome/browser/chromeos/extensions/file_manager/file_browser_handler_api.cc

 // 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.
 
 // The file contains the implementation of
 // fileBrowserHandlerInternal.selectFile extension function.
 // When invoked, the function does the following:
 //  - Verifies that the extension function was invoked as a result of user
 //    gesture.
 //  - Display 'save as' dialog using FileSelectorImpl which waits for the user
@@ skipping 81 matching lines @@
 // SelectFile should be called only once, because the class instance takes
 // ownership of itself after the first call. It will delete itself after the
 // extension function is notified of file selection result.
 // Since the extension function object is ref counted, FileSelectorImpl holds
 // a reference to it to ensure that the extension function doesn't go away while
 // waiting for user action. The reference is released after the function is
 // notified of the selection result.
 class FileSelectorImpl : public FileSelector,
                          public ui::SelectFileDialog::Listener {
  public:
-  explicit FileSelectorImpl();
+  FileSelectorImpl();
   virtual ~FileSelectorImpl() OVERRIDE;
 
  protected:
   // file_manager::FileSelectr overrides.
   // Shows save as dialog with suggested name in window bound to |browser|.
   // |allowed_extensions| specifies the file extensions allowed to be shown,
   // and selected. Extensions should not include '.'.
   //
   // After this method is called, the selector implementation should not be
   // deleted by the caller. It will delete itself after it receives response
@@ skipping 252 matching lines @@
     result->entry->file_system_name = entry_definition.file_system_name;
     result->entry->file_system_root = entry_definition.file_system_root_url;
     result->entry->file_full_path =
         "/" + entry_definition.full_path.AsUTF8Unsafe();
     result->entry->file_is_directory = entry_definition.is_directory;
   }
 
   results_ = SelectFile::Results::Create(*result);
   SendResponse(true);
 }