Make SkPixelRef::isLocked() debug-only, remove related dead code.

Make SkPixelRef::isLocked() debug-only, remove related dead code.

DM's okay locally with no diffs, no failures.

BUG=skia:

Committed: https://skia.googlesource.com/skia/+/8e65712486c66108677a9b0a55ad3e7ca94db555

Committed: https://skia.googlesource.com/skia/+/96d68b704626fe3543ea14a48b4f909519644b54

[mtklein_C, 2015-02-19 16:42:50]

mtklein@chromium.org changed reviewers:
+ reed@google.com

[reed1, 2015-02-19 20:21:39]

lgtm

[mtklein, 2015-02-19 20:31:47]

The CQ bit was checked by mtklein@google.com

[commit-bot: I haz the power, 2015-02-19 20:32:15]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/940083002/1

[commit-bot: I haz the power, 2015-02-20 02:50:03]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/8e65712486c66108677a9b0a55ad3e7ca94db555

[reed2, 2015-02-20 03:58:59]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/940323003/ by reed@chromium.org.

The reason for reverting is: Broke callers in chrome

../../skia/ext/platform_canvas_unittest.cc:421:56: error: no member named
'isLocked' in 'SkPixelRef'
  EXPECT_TRUE(platform_bitmap->GetBitmap().pixelRef()->isLocked());
.

[mtklein, 2015-02-20 04:00:18]

On 2015/02/20 03:58:59, reed2 wrote:
> A revert of this CL (patchset #1 id:1) has been created in
> https://codereview.chromium.org/940323003/ by mailto:reed@chromium.org.
> 
> The reason for reverting is: Broke callers in chrome
> 
> ../../skia/ext/platform_canvas_unittest.cc:421:56: error: no member named
> 'isLocked' in 'SkPixelRef'
>   EXPECT_TRUE(platform_bitmap->GetBitmap().pixelRef()->isLocked());
> .

Rats.

[mtklein, 2015-02-20 17:33:49]

On 2015/02/20 04:00:18, mtklein wrote:
> On 2015/02/20 03:58:59, reed2 wrote:
> > A revert of this CL (patchset #1 id:1) has been created in
> > https://codereview.chromium.org/940323003/ by mailto:reed@chromium.org.
> > 
> > The reason for reverting is: Broke callers in chrome
> > 
> > ../../skia/ext/platform_canvas_unittest.cc:421:56: error: no member named
> > 'isLocked' in 'SkPixelRef'
> >   EXPECT_TRUE(platform_bitmap->GetBitmap().pixelRef()->isLocked());
> > .
> 
> Rats.

Retrying after fixing Chrome.

[mtklein, 2015-02-20 17:33:54]

The CQ bit was checked by mtklein@google.com

[commit-bot: I haz the power, 2015-02-20 17:34:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/940083002/1

[commit-bot: I haz the power, 2015-02-20 20:40:44]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/96d68b704626fe3543ea14a48b4f909519644b54