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

chrome/browser/download/download_file_picker.cc

Index: chrome/browser/download/download_file_picker.cc
diff --git a/chrome/browser/download/download_file_picker.cc b/chrome/browser/download/download_file_picker.cc
index dbac2ae97423e445534adfaf6ea32150b4a04be9..ef0073ec62dddac35fbf03660daee48f82137787 100644
--- a/chrome/browser/download/download_file_picker.cc
+++ b/chrome/browser/download/download_file_picker.cc
@@ -5,6 +5,7 @@
 #include "chrome/browser/download/download_file_picker.h"
 
 #include "base/metrics/histogram.h"
+#include "chrome/browser/chrome_select_file_policy.h"
 #include "chrome/browser/download/download_prefs.h"
 #include "chrome/browser/platform_util.h"
 #include "content/public/browser/download_item.h"
@@ -77,11 +78,16 @@ void DownloadFilePicker::Init(DownloadManager* download_manager,
   gfx::NativeWindow owning_window = web_contents ?
       platform_util::GetTopLevel(web_contents->GetNativeView()) : NULL;
 
-  select_file_dialog_->SelectFile(SelectFileDialog::SELECT_SAVEAS_FILE,
-                                  string16(),
-                                  suggested_path_,
-                                  &file_type_info, 0, FILE_PATH_LITERAL(""),
-                                  web_contents, owning_window, NULL);
+  select_file_dialog_->SelectFile(
+      SelectFileDialog::SELECT_SAVEAS_FILE,
+      string16(),
+      suggested_path_,
+      &file_type_info,
+      0,
+      FILE_PATH_LITERAL(""),
+      ChromeSelectFilePolicy::DisplayInfobarCallback(web_contents),
+      owning_window,
+      NULL);
 }
 
 DownloadFilePicker::~DownloadFilePicker() {