Restore overhaul

 Bug: 5069192
 Store thumbnails in a database restored async for each tab
 Fix restoring a tab not restoring its current state

Change-Id: I2c14e352638aac0ef766fb3bf4036ff220c53ecd
diff --git a/src/com/android/browser/UI.java b/src/com/android/browser/UI.java
index 23897f7..2984d5c 100644
--- a/src/com/android/browser/UI.java
+++ b/src/com/android/browser/UI.java
@@ -147,4 +147,6 @@
 
     void setUseQuickControls(boolean enabled);
 
+    public boolean shouldCaptureThumbnails();
+
 }