Remove custom material styling for EditText in preferences

Remove custom material styling for EditText in preferences

This is implemented in AppCompat now and our custom implementation
was causing bugs (e.g. the cursor was showing up white).

BUG=497608
Committed: https://crrev.com/4a23ee92305fa001c147f427605427904c774425
Cr-Commit-Position: refs/heads/master@{#333762}

[Theresa, 2015-06-10 01:16:58]

twellington@chromium.org changed reviewers:
+ aurimas@chromium.org

[Theresa, 2015-06-10 01:16:58]

ptal

[aurimas (slooooooooow), 2015-06-10 01:18:56]

lgtm

[Theresa, 2015-06-10 01:20:22]

twellington@chromium.org changed reviewers:
+ tedchoc@chromium.org

[Theresa, 2015-06-10 01:20:22]

+tedchoc for OWNERS

[Ted C, 2015-06-10 01:28:48]

On 2015/06/10 01:20:22, Theresa Wellington wrote:
> +tedchoc for OWNERS

Aurimas is an owner, so you're good without me.

[Theresa, 2015-06-10 17:42:35]

The CQ bit was checked by twellington@chromium.org

[commit-bot: I haz the power, 2015-06-10 17:42:57]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1169903003/1

[Theresa, 2015-06-10 17:43:36]

On 2015/06/10 01:28:48, Ted C wrote:
> On 2015/06/10 01:20:22, Theresa Wellington wrote:
> > +tedchoc for OWNERS
> 
> Aurimas is an owner, so you're good without me.

Awesome :) I didn't look at the OWNERS file in chrome/android/java/res (stopped
a couple of sub-directories too soon)

[commit-bot: I haz the power, 2015-06-10 18:20:11]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-06-10 18:21:09]

Patchset 1 (id:??) landed as
https://crrev.com/4a23ee92305fa001c147f427605427904c774425
Cr-Commit-Position: refs/heads/master@{#333762}