Move textarea-related tests to fast/forms/textarea/, part 2.

third_party/WebKit/LayoutTests/fast/forms/linebox-overflow-in-textarea-padding.html

-<style>
-textarea, #foo {
-    font-size: 30px;
-    font-family: courier;
-    border: 3px solid yellow;
-    height: 50px;
-    width: 300px;
-    color: blue;
-    padding:15px;
-    line-height: 0px
-}
-#foo {
-    display:inline-block;
-    overflow:auto;
-    -webkit-box-sizing:border-box;
-}
-</style>
-
-<textarea>ggggggggg ggggggggg</textarea>
-<div id="foo"><div>ggggggggg ggggggggg</div></div>
-
-<p>This is a pixel test that tests the linebox overflow in the padding on textareas. The div on the right is styled to look like a textarea.</p>