PrintPreview: While printing the preview data, set the initiator tab title as print job name.

chrome/renderer/mock_render_thread.h

Index: chrome/renderer/mock_render_thread.h
diff --git a/chrome/renderer/mock_render_thread.h b/chrome/renderer/mock_render_thread.h
index 1d04b97c4f03f2daa082ec9297327f61f5e76ff6..4190c0af1a44373e34bc4f9a3a8c3c608ece87f0 100644
--- a/chrome/renderer/mock_render_thread.h
+++ b/chrome/renderer/mock_render_thread.h
@@ -119,7 +119,9 @@ class MockRenderThread : public RenderThreadBase {
   void OnScriptedPrint(const PrintHostMsg_ScriptedPrint_Params& params,
                        PrintMsg_PrintPages_Params* settings);
 
-  void OnDidGetPrintedPagesCount(int cookie, int number_pages);
+  void OnDidGetBasicPrintJobInfo(int cookie,
+                                 int number_pages,
+                                 const string16& job_title);
   void OnDidPrintPage(const PrintHostMsg_DidPrintPage_Params& params);
 
   IPC::TestSink sink_;