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 9678a3495effbcae8cec167e49fa20d499fb5a08..8d8ae0f28e8e667cdbce58548640830c9e4f76c6 100644
--- a/chrome/browser/ui/browser.cc
+++ b/chrome/browser/ui/browser.cc
@@ -107,6 +107,7 @@
 #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"
@@ -955,8 +956,8 @@ 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();
 
@@ -965,7 +966,6 @@ void Browser::OpenFile() {
   select_file_dialog_->SelectFile(SelectFileDialog::SELECT_OPEN_FILE,
                                   string16(), directory,
                                   NULL, 0, FILE_PATH_LITERAL(""),
-                                  GetActiveWebContents(),
                                   parent_window, NULL);
 }