OOP PDF: Fix incorrect scrolling during fit-to-page

chrome/test/data/pdf/test_util.js

Index: chrome/test/data/pdf/test_util.js
diff --git a/chrome/test/data/pdf/test_util.js b/chrome/test/data/pdf/test_util.js
index 8ea2a81cd9fd3ec609836f67690a9ee49ec1dea3..bf2093ae2d5d9706dbeee3c37c81e233583d4c14 100644
--- a/chrome/test/data/pdf/test_util.js
+++ b/chrome/test/data/pdf/test_util.js
@@ -12,6 +12,11 @@ function MockWindow(width, height, sizer) {
     if (e == 'resize')
       this.resizeCallback = f;
   };
+  this.setSize = function(width, height) {
+    this.innerWidth = width;
+    this.innerHeight = height;
+    this.resizeCallback();
+  }
   this.scrollTo = function(x, y) {
     if (sizer) {
       x = Math.min(x, parseInt(sizer.style.width) - width);