cherry-pick https://android-git.corp.google.com/g/#change,39258 from master
Now mSupportMultiTouch is depending on WebSettings,
it can't be static any more.
Fix http://b/issue?id=
2413364
private boolean mWrapContent;
// whether support multi-touch
- private static boolean mSupportMultiTouch;
+ private boolean mSupportMultiTouch;
// use the framework's ScaleGestureDetector to handle multi-touch
private ScaleGestureDetector mScaleDetector;
// minimum scale change during multi-touch zoom