Fix leaked SkPDFDevice in PDFPrimitivesTest.cpp

https://chromiumcodereview.appspot.com/23003035/



git-svn-id: http://skia.googlecode.com/svn/trunk@10910 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tests/PDFPrimitivesTest.cpp b/tests/PDFPrimitivesTest.cpp
index 0e9cbde..b4ba052 100644
--- a/tests/PDFPrimitivesTest.cpp
+++ b/tests/PDFPrimitivesTest.cpp
@@ -250,7 +250,7 @@
 static void TestImage(skiatest::Reporter* reporter, const SkBitmap& bitmap,
                       const char* expected, bool useDCTEncoder) {
     SkISize pageSize = SkISize::Make(bitmap.width(), bitmap.height());
-    SkPDFDevice* dev = new SkPDFDevice(pageSize, pageSize, SkMatrix::I());
+    SkAutoTUnref<SkPDFDevice> dev(new SkPDFDevice(pageSize, pageSize, SkMatrix::I()));
 
     if (useDCTEncoder) {
         dev->setDCTEncoder(encode_to_dct_stream);