Start consolidating cross-port file selection code into ui/base/dialogs.

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 478acf76fe8a8eea71e4551f5d135f1655591199..dc4fbd07682d10186770c1cee0da8d9144cfa7ae 100644
--- a/chrome/browser/ui/browser.cc
+++ b/chrome/browser/ui/browser.cc
@@ -106,6 +106,7 @@
 #include "chrome/browser/ui/browser_ui_prefs.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/chrome_pages.h"
+#include "chrome/browser/ui/chrome_select_file_policy.h"
 #include "chrome/browser/ui/constrained_window_tab_helper.h"
 #include "chrome/browser/ui/extensions/shell_window.h"
 #include "chrome/browser/ui/find_bar/find_bar.h"
@@ -1010,8 +1011,8 @@ void Browser::OverrideEncoding(int encoding_id) {
 
 void Browser::OpenFile() {
   content::RecordAction(UserMetricsAction("OpenFile"));
-  if (!select_file_dialog_.get())
-    select_file_dialog_ = SelectFileDialog::Create(this);
+  select_file_dialog_ = SelectFileDialog::Create(
+      this, new ChromeSelectFilePolicy(GetActiveWebContents()));
 
   const FilePath directory = profile_->last_selected_directory();
 
@@ -1020,7 +1021,6 @@ void Browser::OpenFile() {
   select_file_dialog_->SelectFile(SelectFileDialog::SELECT_OPEN_FILE,
                                   string16(), directory,
                                   NULL, 0, FILE_PATH_LITERAL(""),
-                                  GetActiveWebContents(),
                                   parent_window, NULL);
 }