use SkData::NewUninitialized

include/core/SkData.h

Index: include/core/SkData.h
diff --git a/include/core/SkData.h b/include/core/SkData.h
index 6da8e113663f0bf256cd516b7e6576be71cd1d41..e25ef50d711fcbfd0a262c122d1f8b53d1ca11b8 100644
--- a/include/core/SkData.h
+++ b/include/core/SkData.h
@@ -11,6 +11,7 @@
 #include "SkRefCnt.h"
 
 struct SkFILE;
+class SkStream;
 
 /**
  *  SkData holds an immutable data buffer. Not only is the data immutable,
@@ -138,6 +139,13 @@ public:
     static SkData* NewFromFD(int fd);
 
     /**
+     *  Attempt to read size bytes into a SkData. If the read succeeds, return the data,
+     *  else return NULL. Either way the stream's cursor may have been changed as a result
+     *  of calling read().
+     */
+    static SkData* NewFromStream(SkStream*, size_t size);
+
+    /**
      *  Create a new dataref using a subset of the data in the specified
      *  src dataref.
      */