Rename the drive: scheme with the externalfile: scheme.

chrome/browser/ui/browser.cc

Index: chrome/browser/ui/browser.cc
diff --git a/chrome/browser/ui/browser.cc b/chrome/browser/ui/browser.cc
index 0525e02fffecdf9cef21665c93a8cabe13fb5940..e9647d9e65af3bff9c4336d5a0e0cf183a90fe72 100644
--- a/chrome/browser/ui/browser.cc
+++ b/chrome/browser/ui/browser.cc
@@ -205,7 +205,7 @@
 #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)
@@ -1924,7 +1924,7 @@ void Browser::FileSelectedWithExtraInfo(const ui::SelectedFileInfo& file_info,
   GURL url = net::FilePathToFileURL(file_info.local_path);
 
 #if defined(OS_CHROMEOS)
-  drive::util::MaybeSetDriveURL(profile_, file_info.file_path, &url);
+  chromeos::MaybeSetExternalFileURL(profile_, file_info.file_path, &url);
 #endif
 
   if (url.is_empty())