Remove cc::SharedBitmap::memory()

Remove cc::SharedBitmap::memory()

This method is only used with the WebPluginDelegateProxy in the renderer, so only support it on a subclass that can be created by the ChildSharedBitmapManager. This will allow us more flexibility in how we implement SharedBitmaps in the future.

Committed: https://crrev.com/2b6a74f89bad99e2102f90674f091e2ca2687fc4
Cr-Commit-Position: refs/heads/master@{#308048}

[jbauman, 2014-12-12 02:50:04]

jbauman@chromium.org changed reviewers:
+ piman@chromium.org

[piman, 2014-12-12 02:56:53]

lgtm

[jbauman, 2014-12-12 02:57:11]

The CQ bit was checked by jbauman@chromium.org

[commit-bot: I haz the power, 2014-12-12 02:58:16]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/802433003/40001

[commit-bot: I haz the power, 2014-12-12 03:50:06]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2014-12-12 03:50:42]

Patchset 3 (id:??) landed as
https://crrev.com/2b6a74f89bad99e2102f90674f091e2ca2687fc4
Cr-Commit-Position: refs/heads/master@{#308048}