[DevTools] Move console viewport to console, rename StaticViewportControl.

third_party/WebKit/LayoutTests/http/tests/inspector-unit/viewport-control.js

-TestRunner.addResult("This tests if the StaticViewportControl works properly.");
+TestRunner.addResult("This tests if the ViewportControl works properly.");
 
 var items = [];
 var heights = [];
 for (var i = 0; i < 100; i++){
     items[i] = document.createElement("div");
     items[i].style.height = (heights[i] = (i % 4) ? 50 : 28) + "px";
     items[i].textContent = i;
 }
-var viewport = new UI.StaticViewportControl({
+var viewport = new UI.ViewportControl({
     fastItemHeight: i => heights[i],
     itemCount: _ => items.length,
     itemElement: i => items[i]
 });
 viewport.element.style.height = "300px";
 UI.inspectorView.element.appendChild(viewport.element);
 
 viewport.refresh();
 dumpViewport();
 
@@ skipping 20 matching lines @@
 
 TestRunner.completeTest();
 
 function dumpViewport()
 {
     TestRunner.addResult("First:" + viewport.firstVisibleIndex());
     TestRunner.addResult("Last:" + viewport.lastVisibleIndex());
     TestRunner.addResult("Active Items:" + viewport._innerElement.children.length);
     TestRunner.addResult("");
 }