Move blob-related code to platform/blob

Source/platform/blob/BlobRegistry.h

Index: Source/platform/blob/BlobRegistry.h
diff --git a/Source/core/fileapi/BlobRegistry.h b/Source/platform/blob/BlobRegistry.h
similarity index 97%
rename from Source/core/fileapi/BlobRegistry.h
rename to Source/platform/blob/BlobRegistry.h
index b564d3b1f559b46151d1be6b06b9bded87e21fe7..da2e6bffba08c974024b73847f76620993b8172f 100644
--- a/Source/core/fileapi/BlobRegistry.h
+++ b/Source/platform/blob/BlobRegistry.h
@@ -31,6 +31,7 @@
 #ifndef BlobRegistry_h
 #define BlobRegistry_h
 
+#include "platform/PlatformExport.h"
 #include "wtf/Forward.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/PassRefPtr.h"
@@ -44,7 +45,7 @@ class RawData;
 class SecurityOrigin;
 
 // A bridging class for calling WebKit::WebBlobRegistry methods.
-class BlobRegistry {
+class PLATFORM_EXPORT BlobRegistry {
 public:
     // Methods for controlling Blobs.
     static void registerBlobData(const String& uuid, PassOwnPtr<BlobData>);