Enable Skia discardable memory path on Android

Enable Skia discardable memory path on Android

With this change Android will stop using the old discardable memory path
and will use Skia's implementation of discardable memory and caching.

Tested on Android with ChromeShell.

BUG=169282

[reveman, 2014-05-29 03:30:54]

lgtm

+pliard fyi

https://codereview.chromium.org/303033004/diff/1/Source/platform/graphics/Def...
File Source/platform/graphics/DeferredImageDecoder.cpp (right):

https://codereview.chromium.org/303033004/diff/1/Source/platform/graphics/Def...
Source/platform/graphics/DeferredImageDecoder.cpp:275: #if SK_B32_SHIFT //
Little-endian RGBA pixels. (Android)
I assume this is the reason my previous patch failed, correct?

[Alpha Left Google, 2014-05-29 07:32:19]

On 2014/05/29 03:30:54, reveman wrote:
> lgtm
> 
> +pliard fyi
> 
>
https://codereview.chromium.org/303033004/diff/1/Source/platform/graphics/Def...
> File Source/platform/graphics/DeferredImageDecoder.cpp (right):
> 
>
https://codereview.chromium.org/303033004/diff/1/Source/platform/graphics/Def...
> Source/platform/graphics/DeferredImageDecoder.cpp:275: #if SK_B32_SHIFT //
> Little-endian RGBA pixels. (Android)
> I assume this is the reason my previous patch failed, correct?

That's right.

[Alpha Left Google, 2014-05-29 19:28:40]

ping senorblanco.

[Stephen White, 2014-05-29 20:07:43]

LGTM

https://codereview.chromium.org/303033004/diff/1/Source/platform/graphics/Def...
File Source/platform/graphics/DeferredImageDecoder.cpp (left):

https://codereview.chromium.org/303033004/diff/1/Source/platform/graphics/Def...
Source/platform/graphics/DeferredImageDecoder.cpp:277: // legacy
LazyDecodingPixelRef.
Out of curiosity, does this mean we can also remove LazyDecodingPixelRef?

[Alpha Left Google, 2014-05-30 19:06:24]

On 2014/05/29 20:07:43, Stephen White wrote:
> LGTM
> 
>
https://codereview.chromium.org/303033004/diff/1/Source/platform/graphics/Def...
> File Source/platform/graphics/DeferredImageDecoder.cpp (left):
> 
>
https://codereview.chromium.org/303033004/diff/1/Source/platform/graphics/Def...
> Source/platform/graphics/DeferredImageDecoder.cpp:277: // legacy
> LazyDecodingPixelRef.
> Out of curiosity, does this mean we can also remove LazyDecodingPixelRef?

That's right. I'll do that next once this is stable.

[Alpha Left Google, 2014-05-30 19:06:31]

The CQ bit was checked by hclam@chromium.org

[commit-bot: I haz the power, 2014-05-30 19:07:45]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/hclam@chromium.org/303033004/1

[commit-bot: I haz the power, 2014-05-30 21:01:21]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  blink_presubmit on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/blink_presubmit/builds/6552)
  linux_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/linux_blink_rel/builds/1...)

[commit-bot: I haz the power, 2014-05-30 22:53:27]

Change committed as 175166