Convert printing IPCs to Mojo

mojo/public/tools/bindings/chromium_bindings_configuration.gni

Index: mojo/public/tools/bindings/chromium_bindings_configuration.gni
diff --git a/mojo/public/tools/bindings/chromium_bindings_configuration.gni b/mojo/public/tools/bindings/chromium_bindings_configuration.gni
index a18343687724baa4762be74f0e4bbf569ba9cdca..713de0e5718630baacf08fb2ac1d1f6c2787df38 100644
--- a/mojo/public/tools/bindings/chromium_bindings_configuration.gni
+++ b/mojo/public/tools/bindings/chromium_bindings_configuration.gni
@@ -9,6 +9,7 @@ _typemap_imports = [
   "//chrome/common/importer/typemaps.gni",
   "//components/arc/common/typemaps.gni",
   "//components/metrics/public/cpp/typemaps.gni",
+  "//components/printing/common/typemaps.gni",
   "//components/typemaps.gni",
   "//content/common/bluetooth/typemaps.gni",
   "//content/common/indexed_db/typemaps.gni",
@@ -38,8 +39,6 @@ _typemap_imports = [
   "//url/mojo/typemaps.gni",
 ]
 
-_typemap_imports_mac = [ "//content/common/typemaps_mac.gni" ]
-
 _typemaps = []
 foreach(typemap_import, _typemap_imports) {
   # Avoid reassignment error by assigning to empty scope first.
@@ -54,6 +53,9 @@ foreach(typemap, _typemaps) {
   typemaps += [ read_file(typemap, "scope") ]
 }
 
+# Mac-specific typemaps
+_typemap_imports_mac = [ "//content/common/typemaps_mac.gni" ]
+
 _typemaps_mac = []
 foreach(typemap_import, _typemap_imports_mac) {
   _imported = {
@@ -66,3 +68,19 @@ typemaps_mac = []
 foreach(typemap, _typemaps_mac) {
   typemaps_mac += [ read_file(typemap, "scope") ]
 }
+
+# Windows-specific typemaps
+_typemap_imports_win = [ "//components/printing/common/typemaps_win.gni" ]
+
+_typemaps_win = []
+foreach(typemap_import, _typemap_imports_win) {
+  _imported = {
+  }
+  _imported = read_file(typemap_import, "scope")
+  _typemaps_win += _imported.typemaps
+}
+
+typemaps_win = []
+foreach(typemap, _typemaps_win) {
+  typemaps_win += [ read_file(typemap, "scope") ]
+}