Provide a fixed transform hint if the layer is in a fixed orientation 2/2
The transform hint is used to prevent allocating a buffer of a different size when a layer is rotated. The producer can choose to consume the hint and allocate the buffer with the same size. Provide the graphic producer a transform hint if the layer and its children are in an orientation different from the display's orientation. The caller is responsible for clearing this transform hint if the layer is no longer in a fixed orientation. Bug: 152919661 Test: atest VulkanPreTransformTest Test: confirm with winscope trace, buffers are allocated taking into account the transform hint in fixed orientation scenarios Test: go/wm-smoke Change-Id: I2ccc21ed8af015716e6cdfde1e3cec67c99f3339
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