89e3ffc66c
Also refactoring the class to make it easier to test and chaning behavior where the current behavior seemed poorly defined. Refactoring: - Combined all handlers into one. - Simplified animation to use a ValueAnimator. - Eliminated ACCESSIBILITY_DISPLAY_MAGNIFICATION_AUTO_UPDATE setting. Move rest of settings reading into mockable class. - Move callbacks from WindowManager into the main class. - Pulled out my instrumented Handler from the MotionEventInjectorTest into its own class so I can reuse it. Behavior changes: - Always constraining out-of-bounds values rather than refusing to change them. - Constraining offsets on bounds changes. We previously left them alone, even if they were out of bounds. - Keeping track of the animation starting point. We were interpolating between the current magnification spec and the final one. This change means the magnification animates to a different profile. Test: This CL adds tests. I've also run a11y CTS. Bugs: 31855954, 30325691 Change-Id: Ie00e29ae88b75d9fe1016f9d107257c9cf6425bb