フールスクリーンフラグ修正。

ABVJE_UI_Android/src/jp/agentec/abook/abv/ui/home/view/FullscreenableChromeClient.java

@@ -80,7 +80,7 @@ public class FullscreenableChromeClient extends WebChromeClient {
         } else {
             winParams.flags &= ~bits;
             if (mCustomView != null) {
-                mCustomView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
+                mCustomView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);
             }
         }
         win.setAttributes(winParams);