Fixed Windows compiler complaints

http://codereview.appspot.com/6392044



git-svn-id: http://skia.googlecode.com/svn/trunk@4511 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/pipe/SkGPipeWrite.cpp b/src/pipe/SkGPipeWrite.cpp
index e257144..e546b5c 100644
--- a/src/pipe/SkGPipeWrite.cpp
+++ b/src/pipe/SkGPipeWrite.cpp
@@ -51,7 +51,7 @@
     if (writer) {
         writer->write32(size);
         SkAutoDataUnref data(stream.copyToData());
-        writer->writePad(data.data(), size);
+        writer->writePad(data->data(), size);
     }
     return 4 + SkAlign4(size);
 }