Added PPB function to return default print settings

ppapi/api/dev/ppb_printing_dev.idl

Index: ppapi/api/dev/ppb_printing_dev.idl
diff --git a/ppapi/api/dev/ppb_printing_dev.idl b/ppapi/api/dev/ppb_printing_dev.idl
new file mode 100644
index 0000000000000000000000000000000000000000..891c1c222e6eccbe46c1aa3d40459d6ec8a92f3a
--- /dev/null
+++ b/ppapi/api/dev/ppb_printing_dev.idl
@@ -0,0 +1,22 @@
+/* Copyright (c) 2012 The Chromium Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/**
+ * Implementation of the Printing interface.

[yzshen1, 2012/06/12 23:14:34]

This is not an 'implementation', right?

[raymes, 2012/06/13 18:23:46]

Done.

+ */
+
+// Note: This version should always match the PPP_Printing_Dev interface.
+label Chrome {
+  M21 = 0.6
+};
+
+interface PPB_Printing_Dev {
+  /**
+   * Output the default print settings for the default printer into

[yzshen1, 2012/06/12 23:14:34]

Output -> Outputs.

[raymes, 2012/06/13 18:23:46]

Done.

+   * <code>print_settings</code>. Returns <code>PP_FALSE</code> on error.
+   */
+  PP_Bool GetDefaultPrintSettings([in] PP_Instance instance,

[yzshen1, 2012/06/12 23:14:34]

[Just to make sure you have considered it.]
Is it necessary to be a sync call?

[raymes, 2012/06/13 18:23:46]

Yes, Trung wants this to be synchronous for flash.

+                                  [out] PP_PrintSettings_Dev print_settings);
+};