Adding functionality to print PDF embedded in the html page.

ppapi/c/private/ppb_pdf.h

 // Copyright (c) 2011 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.
 
 #ifndef PPAPI_C_PRIVATE_PPB_PDF_H_
 #define PPAPI_C_PRIVATE_PPB_PDF_H_
 
 #include "ppapi/c/dev/ppb_font_dev.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/c/pp_var.h"
 
 #define PPB_PDF_INTERFACE "PPB_PDF;1"

[piman, 2012/01/12 23:11:15]

The interface needs to rev if the interface changes

 
 // From the public PPB_Font_Dev file.
 struct PP_FontDescription_Dev;
 
 typedef enum {
   PP_RESOURCESTRING_PDFGETPASSWORD = 0,
   PP_RESOURCESTRING_PDFLOADING = 1,
   PP_RESOURCESTRING_PDFLOAD_FAILED = 2,
   PP_RESOURCESTRING_PDFPROGRESSLOADING = 3
 } PP_ResourceString;
@@ skipping 127 matching lines @@
   void (*HistogramPDFPageCount)(int count);
 
   // Notifies the browser that the given action has been performed.
   void (*UserMetricsRecordAction)(struct PP_Var action);
 
   // Notifies the browser that the PDF has an unsupported feature.
   void (*HasUnsupportedFeature)(PP_Instance instance);
 
   // Invoke SaveAs... dialog, similar to the right-click or wrench menu.
   void (*SaveAs)(PP_Instance instance);
+
+  // Invoke Print dialog for plugin.
+  void (*Print)(PP_Instance instance);
 };
 
 #endif  // PPAPI_C_PRIVATE_PPB_PDF_H_