Tracker: Remove usage of hard-coded count view size in ContainerWindow.

This makes the count view width, height, and font size properly
proportional in the container window. BFilePanel is not yet
fixed however.

src/kits/tracker/ContainerWindow.cpp

@@ -1047,10 +1047,7 @@ BContainerWindow::InitLayout()
 {
 	fBorderedView->GroupLayout()->AddView(0, fPoseView->TitleView());
 
-	BLayoutItem* item = fCountContainer->GroupLayout()->AddView(
-		fPoseView->CountView());
-	item->SetExplicitMinSize(BSize(kCountViewWidth, B_H_SCROLL_BAR_HEIGHT));
-	item->SetExplicitMaxSize(BSize(kCountViewWidth, B_SIZE_UNSET));
+	fCountContainer->GroupLayout()->AddView(fPoseView->CountView(), 0.25f);
 
 	// Eliminate the extra borders
 	fPoseContainer->GridLayout()->SetInsets(-1, 0, -1, -1);

src/kits/tracker/CountView.cpp

@@ -159,7 +159,7 @@ BRect
 BCountView::TextInvalRect() const
 {
 	BRect result = Bounds();
-	result.InsetBy(4, 3);
+	result.InsetBy(4, 4);
 
 	// if the barber pole is not present, use its space for text
 	if (fShowingBarberPole)
@@ -313,7 +313,7 @@ void
 BCountView::AttachedToWindow()
 {
 	SetFont(be_plain_font);
-	SetFontSize(9);
+	SetFontSize(be_plain_font->Size() * 0.75f);
 
 	SetViewUIColor(B_PANEL_BACKGROUND_COLOR);
 	SetLowUIColor(ViewUIColor());