Print Preview: Go from event driven print preview back to print preview with sync messages. The s...

printing/print_job_constants.cc

Index: printing/print_job_constants.cc
===================================================================
--- printing/print_job_constants.cc	(revision 97484)
+++ printing/print_job_constants.cc	(working copy)
@@ -12,6 +12,9 @@
 // Unique ID sent along every preview request.
 const char kPreviewRequestID[] = "requestID";
 
+// Unique ID to identify a print preview UI.
+const char kPreviewUIId[] = "previewUIId";
+
 // Print using cloud print: true if selected, false if not.
 const char kSettingCloudPrintId[] = "cloudPrintID";
 
@@ -83,6 +86,5 @@
 // preview document.
 const int FIRST_PAGE_INDEX = 0;
 const int COMPLETE_PREVIEW_DOCUMENT_INDEX = -1;
-const int INVALID_PAGE_INDEX = -2;
 
 }  // namespace printing