Revert of Make drawImage a virtual on SkDevice

Revert of Make drawImage a virtual on SkDevice (patchset #4 id:60001 of https://codereview.chromium.org/1122643005/)

Reason for revert:
speculative to see if it unblocks DEPS roll

Original issue's description:
> Make drawImage a virtual on SkDevice
> 
> Now with patch for SkDeferredCanvas
> 
> This reverts commit 119468b71f8f4f45657ab30ead331be665de5a57.
> 
> BUG=skia:
> 
> Committed: https://skia.googlesource.com/skia/+/14fe8fd3e53b5e988aac189a8bc3ed28904d85c8

TBR=robertphillips@google.com,mtklein@google.com,reed@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Committed: https://skia.googlesource.com/skia/+/3538e3bfe2e00bc1b5b48d977fa7adff64d8c96b

[reed2, 2015-05-06 00:30:12]

Created Revert of Make drawImage a virtual on SkDevice

[commit-bot: I haz the power, 2015-05-06 00:30:25]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1124003002/1

[commit-bot: I haz the power, 2015-05-06 00:30:52]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/3538e3bfe2e00bc1b5b48d977fa7adff64d8c96b

[reed1, 2015-05-06 14:54:08]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1126273002/ by reed@google.com.

The reason for reverting is: retry now that some fixes (onDrawImage overrides)
have landed in chrome/blink.