Add serialization/deserialization for FakePictureLayer for testing.
Previously we serialize/deserialize FakePictureLayer into PictureLayer.
This introduced an issue in LayerTreeHostTestReadyToActivateNonEmpty and
other unit test cases in layer_tree_host_unittests.cc that downcasting
from PictureLayerImpl to FakePictureLayerImpl will fail.
The data flow was:
FakePictureLayer==>PictureLayer==>PictureLayerImpl==>
FakePictureLayerImpl(downcast failure).
This CL adds procedure to process FakePictureLayer, so it can be
deserialized and down cast correctly.
The data flow becomes:
FakePictureLayer==>FakePictureLayer==>FakePictureLayerImpl
BUG=657871
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_precise_blink_rel
Review-Url: https://codereview.chromium.org/2451913002
Cr-Commit-Position: refs/heads/master@{#427886}
8 files changed
