Little changes to SkAnnotation in pipe:

Little changes to SkAnnotation in pipe:
  - store size in the op data field rather than separately (saves 4 bytes);
  - trim out a malloc/memcpy in each of read and write;
  - remove unused enum value;
  - use the right _unpackOp function;
  - make sure we call needOpBytes().

BUG=

Committed: http://code.google.com/p/skia/source/detail?r=12007

[mtklein, 2013-10-29 19:22:14]

Little things I noticed while debugging skia:1761.  The only important one is
making sure we call needOpBytes()... I think we've just been getting lucky so
far.

[scroggo, 2013-10-29 19:26:03]

On 2013/10/29 19:22:14, mtklein wrote:
> Little things I noticed while debugging skia:1761.  The only important one is
> making sure we call needOpBytes()... I think we've just been getting lucky so
> far.

lgtm

[reed1, 2013-10-29 19:45:53]

lgtm

[commit-bot: I haz the power, 2013-10-29 20:18:47]

CQ is trying da patch. Follow status at
https://skia-tree-status.appspot.com/cq/mtklein@google.com/50523004/1

[commit-bot: I haz the power, 2013-10-29 20:29:41]

Change committed as 12007