Remove unnecessary codes (associated with save image feature)

Remove unnecessary codes (associated with save image feature)

This CL removes the unnecessary codes which is related to the |save image for
canvas| feature. We no longer need the codes because we have already introduced
the saveImageFromData() method to the following CL.
  https://crrev.com/518043003

BUG=401888
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=182334

[zino, 2014-09-02 07:42:54]

Please take a look.

Thank you.

[zino, 2014-09-02 07:43:19]

jinho.bang@samsung.com changed reviewers:
+ junov@chromium.org, kbr@chromium.org

[zino, 2014-09-02 07:43:37]

Please take a look.

Thank you.

[Justin Novosad, 2014-09-02 14:14:22]

On 2014/09/02 07:43:37, zino wrote:
> Please take a look.
> 
> Thank you.

lgtm

[Ken Russell (switch to Gerrit), 2014-09-04 00:24:01]

Please see my comments on your other CLs. I think one of these enums should
remain.

[zino, 2014-09-16 22:18:47]

On 2014/09/04 00:24:01, Ken Russell wrote:
> Please see my comments on your other CLs. I think one of these enums should
> remain.

Ping @kbr.

I think you already agreed this.
Could you please review again?

[Ken Russell (switch to Gerrit), 2014-09-18 17:51:38]

Sorry for the delay. LGTM this time.

[zino, 2014-09-19 00:47:57]

jinho.bang@samsung.com changed reviewers:
+ jochen@chromium.org

[zino, 2014-09-19 01:00:41]

Ping @jochen,

This CL also needs your approval for public/web/*

The pieces of codes (includes enum |NavigationDownloadTo|) were added for saving
canvas image.
 - https://codereview.chromium.org/255563004/

However, we don't need it anymore because of introducing the new
WebView::saveImageFromDataURL() method.
 - https://codereview.chromium.org/518043003/

[zino, 2014-09-19 01:01:13]

Ping @jochen,

This CL also needs your approval for public/web/*

The pieces of codes (includes enum |NavigationDownloadTo|) were added for saving
canvas image.
 - https://codereview.chromium.org/255563004/

However, we don't need it anymore because of introducing the new
WebView::saveImageFromDataURL() method.
 - https://codereview.chromium.org/518043003/

Could you review this CL?

Thank you.

[jochen (gone - plz use gerrit), 2014-09-19 13:28:40]

lgtm

[zino, 2014-09-19 14:14:06]

The CQ bit was checked by jinho.bang@samsung.com

[commit-bot: I haz the power, 2014-09-19 14:14:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patchset/530913003/20001

[commit-bot: I haz the power, 2014-09-19 15:20:27]

Committed patchset #2 (id:20001) as 182334