Remove webkitdropzone.

Remove webkitdropzone.

webkitdropzone is a prefixed version of the dropzone HTML global
attribute. dropzone failed to gain traction among browser vendors, and
only Blink and WebKit implement prefixed versions. Therefore, dropzone
is being removed from the HTML specification in
https://github.com/whatwg/html/pull/2402

The following LayoutTests, which depended on webkitdropzone, have been
rewritten to use event listeners. These tests cover other drag-and-drop
functionality that we still want covered.

* fast/events/dropzone-001 -> fast/dnd/dropEffect-for-effectAllowed
* fast/events/dropzone-002 -> fast/dnd/dropEffect-for-image
* fast/events/dropzone-003 -> fast/dnd/dropEffect-for-link
* fast/events/dropzone-004 -> fast/dnd/dropEffect-for-file

The followng LayoutTests have been removed, because they do not cover
additional functionality that we still need.

* fast/events/dropzone-005 -> only covers dropzone-specific code
* fast/dnd/file-drop-on-webkitdropzone-element.html -> redundant with
  fast/dnd/file-drag-drop-on-page.html
* http/tests/dnd/file-drop-on-webkitdropzone-element.html -> redundant with
  fast/dnd/file-drag-drop-on-page.html

BUG=688943
Review-Url: https://codereview.chromium.org/2720463002
Cr-Commit-Position: refs/heads/master@{#454488}
(cherry picked from commit 798a0d0b8b42492f3acd803caa2ce0b35b8b29d2)

Review-Url: https://codereview.chromium.org/2729353002 .
Cr-Commit-Position: refs/branch-heads/3029@{#9}
Cr-Branched-From: 939b32ee5ba05c396eef3fd992822fcca9a2e262-refs/heads/master@{#454471}
Committed: https://chromium.googlesource.com/chromium/src/+/b152fa718af332bde2004d61e5b0ecbef9653ec1

[pwnall, 2017-03-05 06:54:05]

Description was changed from

==========
Remove webkitdropzone.

webkitdropzone is a prefixed version of the dropzone HTML global
attribute. dropzone failed to gain traction among browser vendors, and
only Blink and WebKit implement prefixed versions. Therefore, dropzone
is being removed from the HTML specification in
https://github.com/whatwg/html/pull/2402

The following LayoutTests, which depended on webkitdropzone, have been
rewritten to use event listeners. These tests cover other drag-and-drop
functionality that we still want covered.

* fast/events/dropzone-001 -> fast/dnd/dropEffect-for-effectAllowed
* fast/events/dropzone-002 -> fast/dnd/dropEffect-for-image
* fast/events/dropzone-003 -> fast/dnd/dropEffect-for-link
* fast/events/dropzone-004 -> fast/dnd/dropEffect-for-file

The followng LayoutTests have been removed, because they do not cover
additional functionality that we still need.

* fast/events/dropzone-005 -> only covers dropzone-specific code
* fast/dnd/file-drop-on-webkitdropzone-element.html -> redundant with
  fast/dnd/file-drag-drop-on-page.html
* http/tests/dnd/file-drop-on-webkitdropzone-element.html -> redundant with
  fast/dnd/file-drag-drop-on-page.html

BUG=688943

Review-Url: https://codereview.chromium.org/2720463002
Cr-Commit-Position: refs/heads/master@{#454488}
(cherry picked from commit 798a0d0b8b42492f3acd803caa2ce0b35b8b29d2)
==========

to

==========
Remove webkitdropzone.

webkitdropzone is a prefixed version of the dropzone HTML global
attribute. dropzone failed to gain traction among browser vendors, and
only Blink and WebKit implement prefixed versions. Therefore, dropzone
is being removed from the HTML specification in
https://github.com/whatwg/html/pull/2402

The following LayoutTests, which depended on webkitdropzone, have been
rewritten to use event listeners. These tests cover other drag-and-drop
functionality that we still want covered.

* fast/events/dropzone-001 -> fast/dnd/dropEffect-for-effectAllowed
* fast/events/dropzone-002 -> fast/dnd/dropEffect-for-image
* fast/events/dropzone-003 -> fast/dnd/dropEffect-for-link
* fast/events/dropzone-004 -> fast/dnd/dropEffect-for-file

The followng LayoutTests have been removed, because they do not cover
additional functionality that we still need.

* fast/events/dropzone-005 -> only covers dropzone-specific code
* fast/dnd/file-drop-on-webkitdropzone-element.html -> redundant with
  fast/dnd/file-drag-drop-on-page.html
* http/tests/dnd/file-drop-on-webkitdropzone-element.html -> redundant with
  fast/dnd/file-drag-drop-on-page.html

BUG=688943

Review-Url: https://codereview.chromium.org/2720463002
Cr-Commit-Position: refs/heads/master@{#454488}
(cherry picked from commit 798a0d0b8b42492f3acd803caa2ce0b35b8b29d2)

Review-Url: https://codereview.chromium.org/2729353002 .
Cr-Commit-Position: refs/branch-heads/3029@{#9}
Cr-Branched-From:
939b32ee5ba05c396eef3fd992822fcca9a2e262-refs/heads/master@{#454471}
Committed:
https://chromium.googlesource.com/chromium/src/+/b152fa718af332bde2004d61e5b0...
==========

[pwnall, 2017-03-05 06:54:07]

Committed patchset #1 (id:1) manually as
b152fa718af332bde2004d61e5b0ecbef9653ec1.