Add Print Selection support to Chrome. This change is fairly involved since ...

chrome/browser/printing/page_range.cc

Index: chrome/browser/printing/page_range.cc
===================================================================
--- chrome/browser/printing/page_range.cc	(revision 18804)
+++ chrome/browser/printing/page_range.cc	(working copy)
@@ -8,6 +8,7 @@
 
 namespace printing {
 
+/* static */
 std::vector<int> PageRange::GetPages(const PageRanges& ranges) {
   std::set<int> pages;
   for (unsigned i = 0; i < ranges.size(); ++i) {
@@ -20,4 +21,11 @@
   return SetToVector(pages);
 }
 
+/* static */
+int PageRange::GetTotalPages(const PageRanges& ranges) {
+  // Since ranges can overlap we need to merge them before counting
+  std::vector<int> pages = PageRange::GetPages(ranges);
+  return pages.size();
+}
+
 }  // namespace printing