Prepopulating "Print To PDF" select file dialog with a suggested filename and path.

chrome/browser/ui/webui/print_preview_handler.h

Index: chrome/browser/ui/webui/print_preview_handler.h
diff --git a/chrome/browser/ui/webui/print_preview_handler.h b/chrome/browser/ui/webui/print_preview_handler.h
index 4756090390182b9c0d7d0e5c8ef1668154bcd3ec..fba51983f98135053936f643ab2d8850f3fa969f 100644
--- a/chrome/browser/ui/webui/print_preview_handler.h
+++ b/chrome/browser/ui/webui/print_preview_handler.h
@@ -12,6 +12,7 @@
 #include "content/browser/webui/web_ui.h"
 
 class EnumeratePrintersTaskProxy;
+class FilePath;
 class FundamentalValue;
 
 namespace printing {
@@ -33,7 +34,7 @@ class PrintPreviewHandler : public WebUIMessageHandler,
   virtual void FileSelected(const FilePath& path, int index, void* params);
 
   // Displays a modal dialog, prompting the user to select a file.
-  void SelectFile();
+  void SelectFile(const FilePath& default_path);
 
  private:
   friend class EnumeratePrintersTaskProxy;
@@ -74,6 +75,8 @@ class PrintPreviewHandler : public WebUIMessageHandler,
   // The underlying dialog object.
   scoped_refptr<SelectFileDialog> select_file_dialog_;
 
+  static FilePath* last_saved_path_;
+
   DISALLOW_COPY_AND_ASSIGN(PrintPreviewHandler);
 };