Use document from preview for System Dialog printing on Windows.

chrome/renderer/chrome_mock_render_thread.h

Index: chrome/renderer/chrome_mock_render_thread.h
diff --git a/chrome/renderer/chrome_mock_render_thread.h b/chrome/renderer/chrome_mock_render_thread.h
index f9e88f8088f3ee3cd148943056f696412192c2cc..e326588bf55d56f9ec70471a3af9fa261571f5ed 100644
--- a/chrome/renderer/chrome_mock_render_thread.h
+++ b/chrome/renderer/chrome_mock_render_thread.h
@@ -94,9 +94,11 @@ class ChromeMockRenderThread : public content::MockRenderThread {
 
 
   // For print preview, PrintWebViewHelper will update settings.
-  void OnUpdatePrintSettings(int document_cookie,
+  void OnUpdatePrintSettings(int render_view_id,
+                             int document_cookie,
                              const base::DictionaryValue& job_settings,
-                             PrintMsg_PrintPages_Params* params);
+                             PrintMsg_PrintPages_Params* params,
+                             bool* canceled);
 
   // A mock printer device used for printing tests.
   scoped_ptr<MockPrinter> printer_;