Change SkStream.

src/utils/win/SkDWriteFontFileStream.h

Index: src/utils/win/SkDWriteFontFileStream.h
===================================================================
--- src/utils/win/SkDWriteFontFileStream.h	(revision 9222)
+++ src/utils/win/SkDWriteFontFileStream.h	(working copy)
@@ -19,13 +19,20 @@
  *  An SkStream backed by an IDWriteFontFileStream.
  *  This allows Skia code to read an IDWriteFontFileStream.
  */
-class SkDWriteFontFileStream : public SkStream {
+class SkDWriteFontFileStream : public SkStreamMemory {
 public:
     explicit SkDWriteFontFileStream(IDWriteFontFileStream* fontFileStream);
     virtual ~SkDWriteFontFileStream();
 
+    virtual size_t read(void* buffer, size_t size) SK_OVERRIDE;
+    virtual bool atEnd() const SK_OVERRIDE;
     virtual bool rewind() SK_OVERRIDE;
-    virtual size_t read(void* buffer, size_t size) SK_OVERRIDE;
+    virtual SkDWriteFontFileStream* duplicate() const SK_OVERRIDE;
+    virtual size_t getPosition() const SK_OVERRIDE;
+    virtual bool seek(size_t position) SK_OVERRIDE;
+    virtual bool move(long offset) SK_OVERRIDE;
+    virtual SkDWriteFontFileStream* fork() const SK_OVERRIDE;
+    virtual size_t getLength() const SK_OVERRIDE;
     virtual const void* getMemoryBase() SK_OVERRIDE;
 
 private: