Add print and getSelectedText functions to the OOP PDF scripting API

chrome/test/data/pdf/basic_plugin_test.js

Index: chrome/test/data/pdf/basic_plugin_test.js
diff --git a/chrome/test/data/pdf/basic_plugin_test.js b/chrome/test/data/pdf/basic_plugin_test.js
index 3a1e360d45d520b6c5af8d813ff2ef23af7cfec5..08d27141a5b25e9e6c7cf0e6b9d96fd7290cea26 100644
--- a/chrome/test/data/pdf/basic_plugin_test.js
+++ b/chrome/test/data/pdf/basic_plugin_test.js
@@ -45,7 +45,15 @@ var tests = [
       chrome.test.assertEq('some more text',
                            dict.textBox[1].textNodes[0].text);
     }), 0);
-  }
+  },
+
+  function testGetSelectedText() {
+    var client = new PDFScriptingAPI(window, window);
+    client.selectAll();
+    client.getSelectedText(chrome.test.callbackPass(function(selectedText) {
+      chrome.test.assertEq('this is some text\nsome more text', selectedText);
+    }));
+  },
 ];
 
 var scriptingAPI = new PDFScriptingAPI(window, window);