frameworks/base/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java:3762: error: cannot find symbol
                if (isPortrait && mNavigationBarHeight == 0
                                  ^
  symbol:   variable mNavigationBarHeight
  location: class PhoneWindowManager
frameworks/base/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java:3763: error: cannot find symbol
                        || !isPortrait && mNavigationBarHeightLandscape == 0) {
                                          ^
  symbol:   variable mNavigationBarHeightLandscape
  location: class PhoneWindowManager
frameworks/base/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java:3768: error: cannot find symbol
                if (mNavigationBarWidth == 0) {
                    ^
  symbol:   variable mNavigationBarWidth
  location: class PhoneWindowManager
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
3 errors