Moved SimplifyDocumentTitle from printing/backend

printing/backend/print_backend.cc

Index: printing/backend/print_backend.cc
diff --git a/printing/backend/print_backend.cc b/printing/backend/print_backend.cc
index b7eb5a142d62e777fdec325edf766efbb495fafe..29d38fba6458b860792d51e202f39868e1e07650 100644
--- a/printing/backend/print_backend.cc
+++ b/printing/backend/print_backend.cc
@@ -4,13 +4,6 @@
 
 #include "printing/backend/print_backend.h"
 
-#include <algorithm>
-
-#include "third_party/icu/source/common/unicode/uchar.h"
-#include "ui/gfx/text_elider.h"
-
-const int kMaxDocumentTitleLength = 50;
-
 namespace printing {
 
 PrinterBasicInfo::PrinterBasicInfo()
@@ -33,15 +26,4 @@ PrinterCapsAndDefaults::~PrinterCapsAndDefaults() {}
 
 PrintBackend::~PrintBackend() {}
 
-base::string16 PrintBackend::SimplifyDocumentTitle(
-    const base::string16& title) {
-  base::string16 no_controls(title);
-  no_controls.erase(
-    std::remove_if(no_controls.begin(), no_controls.end(), &u_iscntrl),
-    no_controls.end());
-  base::string16 result;
-  gfx::ElideString(no_controls, kMaxDocumentTitleLength, &result);
-  return result;
-}
-
 }  // namespace printing