OOP PDF: Allow print preview to handle key events when the plugin has focus

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 a207c9ebb48abd42b682148002e214b8d8f1a221..3b916e8bd82e3642fdc255ceadf95a5cdad8d8f5 100644
--- a/chrome/browser/resources/pdf/pdf.js
+++ b/chrome/browser/resources/pdf/pdf.js
@@ -165,7 +165,7 @@ PDFViewer.prototype = {
   handleKeyEvent_: function(e) {
     var position = this.viewport_.position;
     // Certain scroll events may be sent from outside of the extension.
-    var fromScriptingAPI = e.type == 'scriptingKeypress';
+    var fromScriptingAPI = e.fromScriptingAPI;
 
     var pageUpHandler = function() {
       // Go to the previous page if we are fit-to-page.
@@ -270,6 +270,14 @@ PDFViewer.prototype = {
         }
         return;
     }
+
+    // Give print preview a chance to handle the key event.
+    if (!fromScriptingAPI && this.isPrintPreview_) {
+      this.sendScriptingMessage_({
+        type: 'sendKeyEvent',
+        keyEvent: SerializeKeyEvent(e)
+      });
+    }
   },
 
   /**
@@ -637,10 +645,7 @@ PDFViewer.prototype = {
         });
         return true;
       case 'sendKeyEvent':
-        var e = document.createEvent('Event');
-        e.initEvent('scriptingKeypress');
-        e.keyCode = message.data.keyCode;
-        this.handleKeyEvent_(e);
+        this.handleKeyEvent_(DeserializeKeyEvent(message.data.keyEvent));
         return true;
     }