Track printer protocol usage for CUPS printers.

chromeos/printing/printer_configuration.h

Index: chromeos/printing/printer_configuration.h
diff --git a/chromeos/printing/printer_configuration.h b/chromeos/printing/printer_configuration.h
index 6b9bd641acf4b95cfc62e6b3cd4644a0dbcddde8..9531e3f88ed3fefb249744073402168e4783f717 100644
--- a/chromeos/printing/printer_configuration.h
+++ b/chromeos/printing/printer_configuration.h
@@ -47,6 +47,20 @@ class CHROMEOS_EXPORT Printer {
     SRC_POLICY,
   };
 
+  // An enumeration of printer protocols.  Do not change these values as they
+  // are used in enums.xml.
+  enum PrinterProtocol {
+    UNKOWN = 0,

[Lei Zhang, 2017/05/25 19:02:29]

Typo

[Lei Zhang, 2017/05/25 19:02:29]

Can we start using kFoo?
https://bugs.chromium.org/p/chromium/issues/detail?id=711332

[skau, 2017/05/25 19:35:48]

Done.

[skau, 2017/05/25 19:35:48]

Done.

+    USB = 1,
+    IPP = 2,
+    IPPS = 3,
+    HTTP = 4,
+    HTTPS = 5,
+    SOCKET = 6,
+    LPD = 7,
+    PROTOCOL_MAX
+  };
+
   // Constructs a printer object that is completely empty.
   Printer();
 
@@ -94,6 +108,9 @@ class CHROMEOS_EXPORT Printer {
   // |uri_|.
   bool IsIppEverywhere() const;
 
+  // Returns the printer protocol the printer is configured with.
+  Printer::PrinterProtocol GetProtocol() const;
+
   Source source() const { return source_; }
   void set_source(const Source source) { source_ = source; }