rename filterTextFlags to disableLCD

Under the hood, add SkPixelGeometry to the CreateInfo for new devices, allowing them to see their geometry (SkDeviceProperties) up front, rather than having it changed later.

The only exception is for devices that are used on the root-layer, where we don't see the device until after the fact (at least as long as we allow clients to attach a device to a canvas externally).

We also filter the geometry when we're creating a layer, so we can disable LCD text automatically if the layer is not marked as opaque.

NOTRY=True
-- gammatext flake?

Review URL: https://codereview.chromium.org/719253002
12 files changed