Moving GraphicsContext and dependencies from core to platform.

Source/platform/fonts/Font.h

Index: Source/platform/fonts/Font.h
diff --git a/Source/core/platform/graphics/Font.h b/Source/platform/fonts/Font.h
similarity index 98%
rename from Source/core/platform/graphics/Font.h
rename to Source/platform/fonts/Font.h
index eef57889ae41b1226add8ba6b1c16da9b48f7eaa..1e1e4961746db0f0c09234a71505ff96ba366442 100644
--- a/Source/core/platform/graphics/Font.h
+++ b/Source/platform/fonts/Font.h
@@ -25,9 +25,10 @@
 #ifndef Font_h
 #define Font_h
 
-#include "core/platform/graphics/FontFallbackList.h"
-#include "core/platform/graphics/SimpleFontData.h"
+#include "platform/PlatformExport.h"
 #include "platform/fonts/FontDescription.h"
+#include "platform/fonts/FontFallbackList.h"
+#include "platform/fonts/SimpleFontData.h"
 #include "platform/fonts/TypesettingFeatures.h"
 #include "platform/text/TextDirection.h"
 #include "wtf/HashMap.h"
@@ -75,7 +76,7 @@ struct GlyphOverflow {
 };
 
 
-class Font {
+class PLATFORM_EXPORT Font {
 public:
     Font();
     Font(const FontDescription&, float letterSpacing, float wordSpacing);
@@ -332,7 +333,7 @@ inline float Font::tabWidth(const SimpleFontData& fontData, unsigned tabSize, fl
 
 namespace WTF {
 
-template <> struct OwnedPtrDeleter<WebCore::TextLayout> {
+template <> struct PLATFORM_EXPORT OwnedPtrDeleter<WebCore::TextLayout> {
     static void deletePtr(WebCore::TextLayout*);
 };