redraw once more on a touch-up if we've been dragging, so we can redraw in high-quality mode

update dox on BlurMaskFilter

core/java/android/webkit/WebView.java

@@ -2754,6 +2754,7 @@ public class WebView extends AbsoluteLayout
                 zoomScale = mZoomScale;
                 // set mZoomScale to be 0 as we have done animation
                 mZoomScale = 0;
+                animateZoom = false;    // inform drawContentPicture we're done
                 if (mNeedToAdjustWebTextView) {
                     mNeedToAdjustWebTextView = false;
                     mWebTextView.setTextSize(TypedValue.COMPLEX_UNIT_PX,
@@ -3801,6 +3802,8 @@ public class WebView extends AbsoluteLayout
                         mTouchSelection = false;
                         break;
                     case TOUCH_DRAG_MODE:
+                        // redraw in high-quality, as we're done dragging
+                        invalidate();
                         // if the user waits a while w/o moving before the
                         // up, we don't want to do a fling
                         if (eventTime - mLastTouchTime <= MIN_FLING_TIME) {

graphics/java/android/graphics/BlurMaskFilter.java

@@ -16,13 +16,19 @@
 
 package android.graphics;
 
+/**
+ * This takes a mask, and blurs its edge by the specified radius. Whether or
+ * or not to include the original mask, and whether the blur goes outside,
+ * inside, or straddles, the original mask's border, is controlled by the
+ * Blur enum.
+ */
 public class BlurMaskFilter extends MaskFilter {
 
     public enum Blur {
-        NORMAL(0),  //!< fuzzy inside and outside
+        NORMAL(0),  //!< blur inside and outside of the original border
-        SOLID(1),   //!< solid inside, fuzzy outside
+        SOLID(1),   //!< include the original mask, blur outside
-        OUTER(2),   //!< nothing inside, fuzzy outside
+        OUTER(2),   //!< just blur outside the original border
-        INNER(3);   //!< fuzzy inside, nothing outside
+        INNER(3);   //!< just blur inside the original border
         
         Blur(int value) {
             native_int = value;