Miscellaneous cleanup to reduce number of includes in platform/graphics/

Source/core/platform/graphics/FontCache.cpp

 /*
  * Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer. 
@@ skipping 24 matching lines @@
 #include "core/platform/graphics/FontFallbackList.h"
 #include "core/platform/graphics/FontPlatformData.h"
 #include "core/platform/graphics/FontSelector.h"
 #include "core/platform/graphics/opentype/OpenTypeVerticalData.h"
 #include <wtf/HashMap.h>
 #include <wtf/ListHashSet.h>
 #include <wtf/StdLibExtras.h>
 #include <wtf/text/AtomicStringHash.h>
 #include <wtf/text/StringHash.h>
 
+using namespace WebCore::FontFamilyNames;
 using namespace WTF;
 
 namespace WebCore {
 
 FontCache* fontCache()
 {
     DEFINE_STATIC_LOCAL(FontCache, globalFontCache, ());
     return &globalFontCache;
 }
 
@@ skipping 497 matching lines @@
         clients.append(*it);
 
     ASSERT(numClients == clients.size());
     for (size_t i = 0; i < numClients; ++i)
         clients[i]->fontCacheInvalidated();
 
     purgeInactiveFontData();
 }
 
 } // namespace WebCore