Fix tests to avoid page scale reset when setting page scale.

LayoutTests/fast/events/scale-and-scroll-body.html

Index: LayoutTests/fast/events/scale-and-scroll-body.html
diff --git a/LayoutTests/fast/events/scale-and-scroll-body.html b/LayoutTests/fast/events/scale-and-scroll-body.html
index a4b4f499a94fa18255780fc028aea8423f0d75a4..71d43fc4926663860fd75876353719a7ac892a29 100644
--- a/LayoutTests/fast/events/scale-and-scroll-body.html
+++ b/LayoutTests/fast/events/scale-and-scroll-body.html
@@ -11,11 +11,11 @@
 
       function scrollViaJavascript() {
           var scaleFactor = 2.0;
-          if (window.internals) {
-             window.internals.setPageScaleFactor(scaleFactor, 0, 0);
+          if (window.eventSender) {
+             window.eventSender.setPageScaleFactor(scaleFactor, 0, 0);
           }
 
-          // The page scale, as set by window.internals.setPageScaleFactor should not be apparent
+          // The page scale, as set by window.eventSender.setPageScaleFactor should not be apparent
           // to javascript. So, we expect scrolling to (100,100) to be page coordinates, rather
           // than device pixels.
           document.body.scrollLeft = 100;
@@ -28,10 +28,10 @@
       }
 
       function scrollViaSetScaleFactor() {
-          if (window.internals) {
+          if (window.eventSender) {
               // Test that the scroll offset changes even if scaleFactor remains
               // the same.
-              window.internals.setPageScaleFactor(1, 30, 30);
+              window.eventSender.setPageScaleFactor(1, 30, 30);
               shouldBe("window.document.body.scrollTop", "30");
               shouldBe("window.document.body.scrollLeft", "30");
           }