Spell out some API names in enum.
Some functions are now protected.
Remove property for autoRenderTarget.
textureFormat -> colorBufferFormat.
Used "fixed" instead of "explicit" and follow
the above naming, so that explicitSize becomes
fixedColorBufferSize.
Change-Id: I2fd6ad46033313a3febbb8846146021d5dd11010
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
(cherry picked from commit acebb97b58807d1d5910c79209664b21e741a9c5)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
273c96a941