Fix for Autofill calling WebView.getSettings on background thread.
Fix for Autofill calling WebView.getSettings on background thread.

Autofill was reading the WebView's WebSettings on a background thread.
Move it to the UI thread to conform to the WebView API and get rid of a
Strict Mode violation.

Bug: 5072283
Change-Id: Ib0ac60697f1e629ac1ef1743545b5cf0ac2cf52a

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base