ppapi: Make 0.4 the default for PPP_Printing_Dev, leave backwards-compat

ppapi/native_client/src/trusted/plugin/plugin.cc

 /*
  * Copyright (c) 2011 The Native Client Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifdef _MSC_VER
 // Do not warn about use of std::copy with raw pointers.
 #pragma warning(disable : 4996)
 #endif
@@ skipping 292 matching lines @@
  public:
   explicit PrintingAdapter(Plugin* plugin)
     : pp::Printing_Dev(plugin),
       plugin_(plugin) {
     BrowserPpp* proxy = plugin_->ppapi_proxy();
     CHECK(proxy != NULL);
     ppp_printing_ = static_cast<const PPP_Printing_Dev*>(
         proxy->GetPluginInterface(PPP_PRINTING_DEV_INTERFACE));
   }
 
-  PP_PrintOutputFormat_Dev*
-      QuerySupportedPrintOutputFormats(uint32_t* format_count) {
+  uint32_t QuerySupportedPrintOutputFormats() {
     if (ppp_printing_ != NULL) {
-      return ppp_printing_->QuerySupportedFormats(plugin_->pp_instance(),
-                                                  format_count);
+      return ppp_printing_->QuerySupportedFormats(plugin_->pp_instance());
     }
-    *format_count = 0;
-    return NULL;
+    return 0;
   }
 
   int32_t PrintBegin(const PP_PrintSettings_Dev& print_settings) {
     if (ppp_printing_ != NULL) {
       return ppp_printing_->Begin(plugin_->pp_instance(), &print_settings);
     }
     return 0;
   }
 
   pp::Resource PrintPages(const PP_PrintPageNumberRange_Dev* page_ranges,
@@ skipping 1534 matching lines @@
   std::string scheme = canonicalized.AsString().substr(comps.scheme.begin,
                                                        comps.scheme.len);
   if (scheme == kChromeExtensionUriScheme)
     return SCHEME_CHROME_EXTENSION;
   if (scheme == kDataUriScheme)
     return SCHEME_DATA;
   return SCHEME_OTHER;
 }
 
 }  // namespace plugin