Bug 763771 - Uninitialised value use in TouchInputMapper::abortPointerUsage, r=cjones

widget/gonk/libui/InputReader.cpp

@@ -2330,7 +2330,8 @@ void CursorInputMapper::fadePointer() {
 TouchInputMapper::TouchInputMapper(InputDevice* device) :
         InputMapper(device),
         mSource(0), mDeviceMode(DEVICE_MODE_DISABLED),
-        mSurfaceOrientation(-1), mSurfaceWidth(-1), mSurfaceHeight(-1) {
+        mSurfaceOrientation(-1), mSurfaceWidth(-1), mSurfaceHeight(-1),
+        mPointerUsage(POINTER_USAGE_NONE) {
 }
 
 TouchInputMapper::~TouchInputMapper() {