Lingering gesture floating preview text a bit

java/res/values/attrs.xml

java/res/values/config.xml

java/res/values/styles.xml

...rc/com/android/inputmethod/keyboard/KeyboardSwitcher.java

java/src/com/android/inputmethod/keyboard/KeyboardView.java

...rc/com/android/inputmethod/keyboard/MainKeyboardView.java

...roid/inputmethod/keyboard/internal/PreviewPlacerView.java

java/src/com/android/inputmethod/latin/LatinIME.java

.../src/com/android/inputmethod/research/ResearchLogger.java