Revert "input[type=file]: Ignore the 'overflow' property"

This reverts commit c0d846b5.

Reason for revert: https://ci.chromium.org/p/chromium/builders/ci/Win7%20Tests%20%281%29/110118

Original change's description:
> input[type=file]: Ignore the 'overflow' property
>
> For a historical reason, some form controls always clip the content,
> and should ignore the 'overflow' property. File upload control NG had
> a regression that it accepts overflow:visible.  This CL disables it
> again. The new behavior is compatible with Safari and Firefox.
>
> Bug: 1139629
> Cq-Include-Trybots: luci.chromium.try:linux_layout_tests_layout_ng_disabled
> Change-Id: I6b0b5a715a2c859f195bbf2473ead67cd22bd14d
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2528812
> Reviewed-by: Koji Ishii <kojii@chromium.org>
> Commit-Queue: Kent Tamura <tkent@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#825813}

TBR=yosin@chromium.org,tkent@chromium.org,kojii@chromium.org

Change-Id: I805124707d070cb15348453107884d58ca5998a3
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 1139629
Cq-Include-Trybots: luci.chromium.try:linux_layout_tests_layout_ng_disabled
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2531998Reviewed-by: Morten Stenshorne <mstensho@chromium.org>
Commit-Queue: Morten Stenshorne <mstensho@chromium.org>
Cr-Commit-Position: refs/heads/master@{#826241}

third_party/blink/renderer/core/html/resources/html.css

@@ -567,7 +567,7 @@ input[type="hidden" i], input[type="image" i], input[type="file" i] {
 input[type="file" i] {
     align-items: baseline;
     color: inherit;
-    overflow: hidden !important;
+    overflow: hidden;
     text-align: start !important;
     text-overflow: ellipsis;
     white-space: pre;

third_party/blink/web_tests/fast/forms/file/file-appearance-basic.html

@@ -71,15 +71,4 @@ Styling ::-webkit-file-upload-button:
 <input type=file class="button-shadow">
 <div>
 
-<div>
-<style>
-.overflow {
-  overflow: visible;
-  width: 10px;
-}
-</style>
-'overflow: visible' should not work:
-<input type=file class=overflow>
-</div>
-
 </body>