Revert of Make SkPicture/SkImageGenerator default to SkCodec

Revert of Make SkPicture/SkImageGenerator default to SkCodec (patchset #7 id:120001 of https://codereview.chromium.org/1671193002/ )

Reason for revert:
Breaks Ubuntu and Mac CMAKE

Original issue's description:
> Make SkPicture/SkImageGenerator default to SkCodec
> 
> Remove reference to SkImageDecoder from SkPicture. Make the default
> InstallPixelRefProc passed to CreateFromStream use
> SkImageGenerator::NewFromEncoded instead.
> 
> Make SkImageGenerator::NewFromEncoded create an SkCodecImageGenerator.
> Remove the old version that used SkImageDecoder.
> 
> Remove all versions of lazy_decode_bitmap/LazyDecodeBitmap. The default
> now behaves lazily.
> 
> Update all clients to use the default.
> 
> Move SkImageDecoderGenerator into KtxTest.cpp, and use it directly.
> 
> BUG=skia:4691
> BUG=skia:4290
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1671193002
> 
> Committed: https://skia.googlesource.com/skia/+/026388a01864c74208ad57d1ba4f711602d101c6

TBR=msarett@google.com,reed@google.com,scroggo@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:4691
Committed: https://skia.googlesource.com/skia/+/1de415f2c33febbac668500afbbb0c9b120c125f

[kjlubick, 2016-02-10 19:24:56]

Created Revert of Make SkPicture/SkImageGenerator default to SkCodec

[commit-bot: I haz the power, 2016-02-10 19:25:01]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1685963004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1685963004/1

[commit-bot: I haz the power, 2016-02-10 19:25:31]

Description was changed from

==========
Revert of Make SkPicture/SkImageGenerator default to SkCodec (patchset #7
id:120001 of https://codereview.chromium.org/1671193002/ )

Reason for revert:
Breaks Ubuntu and Mac CMAKE

Original issue's description:
> Make SkPicture/SkImageGenerator default to SkCodec
> 
> Remove reference to SkImageDecoder from SkPicture. Make the default
> InstallPixelRefProc passed to CreateFromStream use
> SkImageGenerator::NewFromEncoded instead.
> 
> Make SkImageGenerator::NewFromEncoded create an SkCodecImageGenerator.
> Remove the old version that used SkImageDecoder.
> 
> Remove all versions of lazy_decode_bitmap/LazyDecodeBitmap. The default
> now behaves lazily.
> 
> Update all clients to use the default.
> 
> Move SkImageDecoderGenerator into KtxTest.cpp, and use it directly.
> 
> BUG=skia:4691
> BUG=skia:4290
> GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
> 
> Committed:
https://skia.googlesource.com/skia/+/026388a01864c74208ad57d1ba4f711602d101c6

TBR=msarett@google.com,reed@google.com,scroggo@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:4691
==========

to

==========
Revert of Make SkPicture/SkImageGenerator default to SkCodec (patchset #7
id:120001 of https://codereview.chromium.org/1671193002/ )

Reason for revert:
Breaks Ubuntu and Mac CMAKE

Original issue's description:
> Make SkPicture/SkImageGenerator default to SkCodec
> 
> Remove reference to SkImageDecoder from SkPicture. Make the default
> InstallPixelRefProc passed to CreateFromStream use
> SkImageGenerator::NewFromEncoded instead.
> 
> Make SkImageGenerator::NewFromEncoded create an SkCodecImageGenerator.
> Remove the old version that used SkImageDecoder.
> 
> Remove all versions of lazy_decode_bitmap/LazyDecodeBitmap. The default
> now behaves lazily.
> 
> Update all clients to use the default.
> 
> Move SkImageDecoderGenerator into KtxTest.cpp, and use it directly.
> 
> BUG=skia:4691
> BUG=skia:4290
> GOLD_TRYBOT_URL=
https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&is...
> 
> Committed:
https://skia.googlesource.com/skia/+/026388a01864c74208ad57d1ba4f711602d101c6

TBR=msarett@google.com,reed@google.com,scroggo@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:4691

Committed:
https://skia.googlesource.com/skia/+/1de415f2c33febbac668500afbbb0c9b120c125f
==========

[commit-bot: I haz the power, 2016-02-10 19:25:32]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/1de415f2c33febbac668500afbbb0c9b120c125f