Add print and getSelectedText functions to the OOP PDF scripting API

chrome/browser/resources/pdf/pdf.js

Index: chrome/browser/resources/pdf/pdf.js
diff --git a/chrome/browser/resources/pdf/pdf.js b/chrome/browser/resources/pdf/pdf.js
index 537c2765d98b14d15c3a04945e05fc46ceacf626..b8f83c71f26d0a61be0e9921f99a082c3463054a 100644
--- a/chrome/browser/resources/pdf/pdf.js
+++ b/chrome/browser/resources/pdf/pdf.js
@@ -378,6 +378,9 @@ PDFViewer.prototype = {
         else
           this.passwordScreen_.deny();
         break;
+      case 'getSelectedTextReply':
+        this.sendScriptingMessage_(message.data);
+        break;
       case 'goToPage':
         this.viewport_.goToPage(message.data.page);
         break;
@@ -527,7 +530,10 @@ PDFViewer.prototype = {
   handleScriptingMessage: function(message) {
     switch (message.data.type.toString()) {
       case 'getAccessibilityJSON':
+      case 'getSelectedText':
       case 'loadPreviewPage':
+      case 'print':
+      case 'selectAll':
         this.plugin_.postMessage(message.data);
         break;
       case 'resetPrintPreviewMode':