Reland "Change PointerController to display space"

259a2122aeafea0f20bfcc7c9bcd089511a5aa56

Bug: 188939842
Bug: 144544464
Bug: 206817973
Test: forrest run - CtsHardwareTestCases

Change-Id: I8f0312a502ec5c79038ef1697cf2d5b23db9fcfc
diff --git a/services/inputflinger/include/PointerControllerInterface.h b/services/inputflinger/include/PointerControllerInterface.h
index b106949..db4228d 100644
--- a/services/inputflinger/include/PointerControllerInterface.h
+++ b/services/inputflinger/include/PointerControllerInterface.h
@@ -30,7 +30,8 @@
  * fingers
  *
  * The pointer controller is responsible for providing synchronization and for tracking
- * display orientation changes if needed.
+ * display orientation changes if needed. It works in the display panel's coordinate space, which
+ * is the same coordinate space used by InputReader.
  */
 class PointerControllerInterface {
 protected: