Get semantic capabilities from Print Backend.

Moved OS specific code into OS specific print backends (vs. print_system_task_proxy.cc).
On Windows get capabilities using native API (vs. XPS parsing)
Some clean up on code and interfaces for Print Backend.

BUG=144031
TEST=Verify Print Preview on ALL platforms (Win XP, Win 7, Linux, Mac).

Review URL: https://chromiumcodereview.appspot.com/10905006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@155310 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 22 insertions, 0 deletions

diff --git a/printing/backend/print_backend.h b/printing/backend/print_backend.h
index dfa4762..3cbf162 100644
--- a/printing/backend/print_backend.h
+++ b/printing/backend/print_backend.h
@@ -10,6 +10,7 @@
 #include <vector>
 
 #include "base/memory/ref_counted.h"
+#include "printing/print_job_constants.h"
 #include "printing/printing_export.h"
 
 namespace base {
@@ -32,6 +33,19 @@ struct PRINTING_EXPORT PrinterBasicInfo {
 
 typedef std::vector<PrinterBasicInfo> PrinterList;
 
+struct PRINTING_EXPORT PrinterSemanticCapsAndDefaults {
+  PrinterSemanticCapsAndDefaults();
+  ~PrinterSemanticCapsAndDefaults();
+
+  // Capabilities.
+  bool color_capable;
+  bool duplex_capable;
+
+  // Current defaults.
+  bool color_default;
+  DuplexMode duplex_default;
+};
+
 struct PRINTING_EXPORT PrinterCapsAndDefaults {
   PrinterCapsAndDefaults();
   ~PrinterCapsAndDefaults();
@@ -58,6 +72,14 @@ class PRINTING_EXPORT PrintBackend
   // Get the default printer name. Empty string if no default printer.
   virtual std::string GetDefaultPrinterName() = 0;
 
+  // Gets the semantic capabilities and defaults for a specific printer.
+  // This is usually a lighter implementation than GetPrinterCapsAndDefaults().
+  // NOTE: on some old platforms (WinXP without XPS pack)
+  // GetPrinterCapsAndDefaults() will fail, while this function will succeed.
+  virtual bool GetPrinterSemanticCapsAndDefaults(
+      const std::string& printer_name,
+      PrinterSemanticCapsAndDefaults* printer_info) = 0;
+
   // Gets the capabilities and defaults for a specific printer.
   virtual bool GetPrinterCapsAndDefaults(
       const std::string& printer_name,