Printing: Refactor PrintSettings::Init into a PrintSettingsFactory class
per-platform.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/4040001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@63907 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/printing/printing_context.cc b/printing/printing_context.cc
index 933906d4..cd888ea 100644
--- a/printing/printing_context.cc
+++ b/printing/printing_context.cc
@@ -17,7 +17,9 @@
 
 void PrintingContext::ResetSettings() {
   ReleaseContext();
+
   settings_.Clear();
+
   in_print_job_ = false;
   dialog_box_dismissed_ = false;
   abort_printing_ = false;