Fix bug 319131: eliminate blank area at the bottom of the downloads list by making sure that the CHFlippedShinkWrapView that wraps the CHStackView doesn't add any extra padding.

camino/src/download/ProgressDlgController.mm

@@ -103,6 +103,11 @@ static id gSharedProgressController = nil;
     mAwaitingTermination = NO;
     mShouldCloseWindow   = NO;
     
+    // we "know" that the superview of the stack view is a CHFlippedShrinkWrapView
+    // (it has to be, because NSScrollViews have to contain a flipped view)
+    if ([[mStackView superview] respondsToSelector:@selector(setNoIntrinsicPadding)])
+      [[mStackView superview] setNoIntrinsicPadding];
+
     // We provide the views for the stack view, from mProgressViewControllers
     [mStackView setShowsSeparators:YES];
     [mStackView setDataSource:self];

camino/src/extensions/CHStackView.h

@@ -71,6 +71,8 @@ extern NSString* const kStackViewResizedNotificationName;
 // padding will normally be calculated automatically from the subview positions,
 // but you can set it explicilty if you wish.
 - (void)setIntrinsicPadding:(float)inPadding forEdge:(NSRectEdge)inEdge;
+// shortcut to set no padding on all edges
+- (void)setNoIntrinsicPadding;
 - (float)paddingForEdge:(NSRectEdge)inEdge;
 
 - (void)adaptToSubviews;

camino/src/extensions/CHStackView.m

@@ -115,6 +115,15 @@
   mPaddingSetManually = YES;
 }
 
+- (void)setNoIntrinsicPadding
+{
+  mIntrinsicPadding[NSMinXEdge] = 0.0f;
+  mIntrinsicPadding[NSMinYEdge] = 0.0f;
+  mIntrinsicPadding[NSMaxXEdge] = 0.0f;
+  mIntrinsicPadding[NSMaxYEdge] = 0.0f;
+  mPaddingSetManually = YES;
+}
+
 - (float)paddingForEdge:(NSRectEdge)inEdge
 {
   if ((int)inEdge < 0 || (int)inEdge > 3)