Add support for printing selection only flag. This only adds the flag to the ...

chrome/browser/printing/print_settings.h

Index: chrome/browser/printing/print_settings.h
===================================================================
--- chrome/browser/printing/print_settings.h	(revision 17852)
+++ chrome/browser/printing/print_settings.h	(working copy)
@@ -30,7 +30,8 @@
   void Init(HDC hdc,
             const DEVMODE& dev_mode,
             const PageRanges& new_ranges,
-            const std::wstring& new_device_name);
+            const std::wstring& new_device_name,
+            bool selection_only);
 #endif
 
   // Set printer printable area in in pixels.
@@ -78,6 +79,9 @@
   // The various overlays (headers and footers).
   PageOverlays overlays;
 
+  // Indicates if the user only wants to print the current selection.
+  bool selection_only;
+
   // Cookie generator. It is used to initialize PrintedDocument with its
   // associated PrintSettings, to be sure that each generated PrintedPage is
   // correctly associated with its corresponding PrintedDocument.