952540 - Remove references to Compositables from Texture subclasses as appropriate

Status: NEW

(Core :: Graphics, defect)

Description

[Benoit Jacob [:bjacob] (mostly away)]

One of the main benefits of PTexture (bug 897452) is that Textures no longer has to rely on Compositables for IPC. But some Texture{Client,Host} subclasses still reference Compositable{Client,Host} subclasses, and even depend on them to get at the IPC forwarder/allocator. This goes against the idea that TextureClient should be usable everywhere we need that kind of surfaces regardless of compositables, and a concrete example of how it is a problem is clear in the latest patch on bug 893304, where GrallocTextureClient relies on a CompositableClient to give it its IPC forwarder/allocator.