Implement enableSlowWholeDocumentDraw

Keep a static boolean in WebViewChromium to distinguish setting by API
call vs setting by targetSdkVersion. Call into chromium side in
initForReal.

BUG: 16300353

Change-Id: Ifd7cb4c27d4129575edaeeedf1464ca43c9f4c03
2 files changed
tree: 63373d2f5c0164291061664072ec05e76f8702f8
  1. Android.mk
  2. chromium/
  3. nullwebview/