if (!mHasNavigationBar) {
                // Set the navigation bar's dimensions to 0 in expanded desktop mode
                mNavigationBarWidthForRotation[mPortraitRotation]
                        = mNavigationBarWidthForRotation[mUpsideDownRotation]
                        = mNavigationBarWidthForRotation[mLandscapeRotation]
                        mNavigationBarWidthForRotation[mSeascapeRotation] = res.getDimensionPixelSize(com.android.internal.R.dimen.navigation_bar_width);
                        = mNavigationBarHeightForRotation[mPortraitRotation]
                        = mNavigationBarHeightForRotation[mUpsideDownRotation]
                        = mNavigationBarHeightForRotation[mLandscapeRotation]
                        = mNavigationBarHeightForRotation[mSeascapeRotation] = res.getDimensionPixelSize(           com.android.internal.R.dimen.navigation_bar_height_landscape);