Compute the popup location/size correctly when use-zoom-for-dsf is enabled.

third_party/WebKit/LayoutTests/fast/hidpi/popup-menu-appearance-dsf2-with-zoom.html

Index: third_party/WebKit/LayoutTests/fast/hidpi/popup-menu-appearance-dsf2-with-zoom.html
diff --git a/third_party/WebKit/LayoutTests/fast/hidpi/popup-menu-appearance-dsf2.html b/third_party/WebKit/LayoutTests/fast/hidpi/popup-menu-appearance-dsf2-with-zoom.html
similarity index 79%
copy from third_party/WebKit/LayoutTests/fast/hidpi/popup-menu-appearance-dsf2.html
copy to third_party/WebKit/LayoutTests/fast/hidpi/popup-menu-appearance-dsf2-with-zoom.html
index ecd67c26b631a8cb9061a3cb21c76d8b418a79db..036c53f521eac598a0c4de85dee10ced5abbeac8 100644
--- a/third_party/WebKit/LayoutTests/fast/hidpi/popup-menu-appearance-dsf2.html
+++ b/third_party/WebKit/LayoutTests/fast/hidpi/popup-menu-appearance-dsf2-with-zoom.html
@@ -5,7 +5,9 @@
   window.enablePixelTesting = true;
   function startTest() {
     if (window.testRunner) {
-      testRunner.setBackingScaleFactor(2.0, function() {});
+      testRunner.enableUseZoomForDSF(function() {
+        testRunner.setBackingScaleFactor(2.0, function() {});
+      });
     }
   }
   window.matchMedia('screen and (min-resolution: 2dppx)').
@@ -14,16 +16,12 @@
          openMenu();
        }
      });
-
   function openMenu() {
-    openPicker(menu, done, function () {
+    openPicker(document.getElementById('menu'), finishJSTest, function () {
         testFailed('picker didn\'t open')
         finishJSTest();
     });
   }
-  function done() {
-    finishJSTest();
-  }
 </script>
 <script src="../../resources/js-test.js"></script>
 <script src="../forms/resources/picker-common.js"></script>
@@ -41,8 +39,6 @@
   </optgroup>
 </select>
 <p id="description" style="opacity: 0"></p>
-select<sediv id="console" style="opacity: 0"></div>
-<script>
-</script>
+<div id="console" style="opacity: 0"></div>
 </body>
 </html>