Modify and rebaseline popup menu web font loading test

The original image baseline has the dropdown options hovering above the selector. This moves the <select> above the description/console and makes the dropdown appear in the correct position (i.e. directly below the selector)

BUG=

Review-Url: https://codereview.chromium.org/2611593003
Cr-Commit-Position: refs/heads/master@{#441407}

third_party/WebKit/LayoutTests/http/tests/webfont/popup-menu-load-webfont-after-open.html

@@ -18,6 +18,8 @@ option {
     <option>foo</option>
     <option>bar</option>
 </select>
+<p id="description"></p>
+<div id="console"></div>
 <script>
 description('Test that fonts loaded after a popup menu is opened triggers a style recalc.');
 

third_party/WebKit/LayoutTests/platform/mac/http/tests/webfont/popup-menu-load-webfont-after-open-expected.txt

+
 Test that fonts loaded after a popup menu is opened triggers a style recalc.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".

third_party/WebKit/LayoutTests/platform/win/http/tests/webfont/popup-menu-load-webfont-after-open-expected.txt

+
 Test that fonts loaded after a popup menu is opened triggers a style recalc.
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".