Fixes unnecessary newlines in obfuscated, generated CSS.
Review by: bobv (desk check).

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@6798 8db76d5a-ed1c-0410-87a9-c151d255dfc7
diff --git a/user/src/com/google/gwt/resources/css/CssGenerationVisitor.java b/user/src/com/google/gwt/resources/css/CssGenerationVisitor.java
index 29eb0ff..cb92453 100644
--- a/user/src/com/google/gwt/resources/css/CssGenerationVisitor.java
+++ b/user/src/com/google/gwt/resources/css/CssGenerationVisitor.java
@@ -85,7 +85,7 @@
   public void endVisit(CssMediaRule x, Context ctx) {
     out.indentOut();
     out.print("}");
-    out.newline();
+    out.newlineOpt();
   }
 
   @Override
@@ -98,7 +98,7 @@
   public void endVisit(CssPageRule x, Context ctx) {
     out.indentOut();
     out.print("}");
-    out.newline();
+    out.newlineOpt();
   }
 
   @Override
@@ -274,7 +274,7 @@
   private void closeBrace() {
     out.indentOut();
     out.print('}');
-    out.newline();
+    out.newlineOpt();
   }
 
   private void colon() {