Rename the drive: scheme with the externalfile: scheme.

chrome/browser/ui/browser.cc

 // Copyright 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.
 
 #include "chrome/browser/ui/browser.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <shellapi.h>
 #endif  // defined(OS_WIN)
@@ skipping 187 matching lines @@
 #if defined(OS_WIN)
 #include "base/win/metro.h"
 #include "chrome/browser/ssl/ssl_error_info.h"
 #include "chrome/browser/task_manager/task_manager.h"
 #include "chrome/browser/ui/view_ids.h"
 #include "components/autofill/core/browser/autofill_ie_toolbar_import_win.h"
 #include "ui/base/win/shell.h"
 #endif  // OS_WIN
 
 #if defined(OS_CHROMEOS)
-#include "chrome/browser/chromeos/drive/file_system_util.h"
+#include "chrome/browser/chromeos/fileapi/external_file_url_util.h"
 #endif
 
 #if defined(USE_ASH)
 #include "ash/ash_switches.h"
 #endif
 
 using base::TimeDelta;
 using base::UserMetricsAction;
 using content::NativeWebKeyboardEvent;
 using content::NavigationController;
@@ skipping 1698 matching lines @@
 }
 
 void Browser::FileSelectedWithExtraInfo(const ui::SelectedFileInfo& file_info,
                                         int index,
                                         void* params) {
   profile_->set_last_selected_directory(file_info.file_path.DirName());
 
   GURL url = net::FilePathToFileURL(file_info.local_path);
 
 #if defined(OS_CHROMEOS)
-  drive::util::MaybeSetDriveURL(profile_, file_info.file_path, &url);
+  const GURL external_url =

[sky, 2014/09/22 16:44:18]

Is there a reason this is conditional? And do you really want 1924 if chromeos?

[hirono, 2014/09/23 09:25:17]

Yes, In Chrome OS, some volumes are mapped to native directories (e.g.
Downloads, USB storages), and in that case we don't need to use externalfile://
scheme URL. For non-native volumes (e.g. Google Drive, MTP, FSP) we access the
files by using externalfile:// URL.

The original function MaybeSetDriveURL replaces the URL for drive volumes, and
keeps the file:// URL for other types of volumes.
 

+      chromeos::CreateExternalFileURLFromPath(profile_, file_info.file_path);
+  if (!external_url.is_empty())
+    url = external_url;
 #endif
 
   if (url.is_empty())
     return;
 
   OpenURL(OpenURLParams(
       url, Referrer(), CURRENT_TAB, content::PAGE_TRANSITION_TYPED, false));
 }
 
 ///////////////////////////////////////////////////////////////////////////////
@@ skipping 539 matching lines @@
   if (contents && !allow_js_access) {
     contents->web_contents()->GetController().LoadURL(
         target_url,
         content::Referrer(),
         content::PAGE_TRANSITION_LINK,
         std::string());  // No extra headers.
   }
 
   return contents != NULL;
 }