fix type



git-svn-id: http://skia.googlecode.com/svn/trunk@4428 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/core/SkStream.cpp b/src/core/SkStream.cpp
index f0e52c7..ff2202d 100644
--- a/src/core/SkStream.cpp
+++ b/src/core/SkStream.cpp
@@ -93,13 +93,13 @@
     }
 }
 
-SkData* SkStream::readStream() {
+SkData* SkStream::readData() {
     size_t size = this->readU32();
     if (0 == size) {
         return SkData::NewEmpty();
     } else {
         void* buffer = sk_malloc_throw(size);
-        stream->read(buffer, size);
+        this->read(buffer, size);
         return SkData::NewFromMalloc(buffer, size);
     }
 }