Implement basic ShowItemInFolder for linux....

chrome/browser/download/download_file.cc

 // Copyright (c) 2006-2008 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/browser/download/download_file.h"
 
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/string_util.h"
 #include "base/task.h"
 #include "build/build_config.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/download/download_manager.h"
 #include "chrome/browser/profile.h"
 #include "chrome/browser/renderer_host/resource_dispatcher_host.h"
 #include "chrome/browser/tab_contents/tab_util.h"
 #include "chrome/browser/tab_contents/web_contents.h"
 #include "chrome/common/chrome_paths.h"
+#include "chrome/common/platform_util.h"
 #include "chrome/common/stl_util-inl.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/io_buffer.h"
 #include "net/base/net_util.h"
 #include "net/url_request/url_request_context.h"
 
 #if defined(OS_WIN)
 #include "chrome/common/win_util.h"
 #include "chrome/common/win_safe_util.h"
 #endif
@@ skipping 481 matching lines @@
   DCHECK(MessageLoop::current() == io_loop_);
   resource_dispatcher_host_->BeginDownload(url,
                                            referrer,
                                            render_process_host_id,
                                            render_view_id,
                                            request_context);
 }
 
 // Actions from the UI thread and run on the download thread
 
-// Open a download, or show it in a Windows Explorer window. We run on this
+// Open a download, or show it in a file explorer window. We run on this
 // thread to avoid blocking the UI with (potentially) slow Shell operations.
 // TODO(paulg): File 'stat' operations.
 void DownloadFileManager::OnShowDownloadInShell(const FilePath& full_path) {
-#if defined(OS_WIN)
   DCHECK(MessageLoop::current() == file_loop_);
-  win_util::ShowItemInFolder(full_path.value());
-#else
-  // TODO(port) implement me.
-  NOTREACHED();
-#endif
+  platform_util::ShowItemInFolder(full_path);
 }
 
 // Launches the selected download using ShellExecute 'open' verb. If there is
 // a valid parent window, the 'safer' version will be used which can
 // display a modal dialog asking for user consent on dangerous files.
 void DownloadFileManager::OnOpenDownloadInShell(const FilePath& full_path,
                                                 const GURL& url,
                                                 gfx::NativeView parent_window) {
 #if defined(OS_WIN)
   DCHECK(MessageLoop::current() == file_loop_);
@@ skipping 51 matching lines @@
     ui_loop_->PostTask(FROM_HERE, NewRunnableMethod(
         this, &DownloadFileManager::StopUpdateTimer));
 }
 
 // static
 void DownloadFileManager::DeleteFile(const FilePath& path) {
   // Make sure we only delete files.
   if (!file_util::DirectoryExists(path))
     file_util::Delete(path, false);
 }