modify files view to use declared sdk libraries

compiler/java/com/google/dart/compiler/PackageLibraryManager.java

Index: compiler/java/com/google/dart/compiler/PackageLibraryManager.java
===================================================================
--- compiler/java/com/google/dart/compiler/PackageLibraryManager.java	(revision 11969)
+++ compiler/java/com/google/dart/compiler/PackageLibraryManager.java	(working copy)
@@ -306,10 +306,13 @@
   }
   
   protected SystemLibrary[] getDefaultLibraries() {
-    return SDK_LIBRARY_MANAGER.getDefaultLibraries();
-    
+    return SDK_LIBRARY_MANAGER.getDefaultLibraries(); 
   }
   
+  public Collection<SystemLibrary> getSystemLibraries(){
+    return SDK_LIBRARY_MANAGER.getAllSystemLibraries();
+  }
+  
   public File getSdkLibPath() {
     return SDK_LIBRARY_MANAGER.getSdkLibPath();
   }