Make SkStream *not* ref counted.

src/pdf/SkPDFShader.cpp

Index: src/pdf/SkPDFShader.cpp
diff --git a/src/pdf/SkPDFShader.cpp b/src/pdf/SkPDFShader.cpp
index 890bf447d5c46a8b0e4943ab0704bfef233195d7..4640593df4219aa0f3a1adc231ed6f6a8a59cb48 100644
--- a/src/pdf/SkPDFShader.cpp
+++ b/src/pdf/SkPDFShader.cpp
@@ -763,7 +763,7 @@ SkPDFGraphicState* SkPDFAlphaFunctionShader::CreateSMaskGraphicState() {
             SkPDFShader::GetPDFShaderByState(
                  fState->CreateAlphaToLuminosityState()));
 
-    SkAutoTUnref<SkStream> alphaStream(create_pattern_fill_content(-1, bbox));
+    SkAutoTDelete<SkStream> alphaStream(create_pattern_fill_content(-1, bbox));
 
     SkAutoTUnref<SkPDFResourceDict>
         resources(get_gradient_resource_dict(luminosityShader, NULL));
@@ -790,7 +790,7 @@ SkPDFAlphaFunctionShader::SkPDFAlphaFunctionShader(SkPDFShader::State* state)
     fResourceDict.reset(
             get_gradient_resource_dict(fColorShader.get(), alphaGs.get()));
 
-    SkAutoTUnref<SkStream> colorStream(
+    SkAutoTDelete<SkStream> colorStream(
             create_pattern_fill_content(0, bbox));
     setData(colorStream.get());
 
@@ -1156,7 +1156,7 @@ SkPDFImageShader::SkPDFImageShader(SkPDFShader::State* state) : fState(state) {
     }
 
     // Put the canvas into the pattern stream (fContent).
-    SkAutoTUnref<SkStream> content(pattern.content());
+    SkAutoTDelete<SkStream> content(pattern.content());
     setData(content.get());
     SkPDFResourceDict* resourceDict = pattern.getResourceDict();
     resourceDict->getReferencedResources(fResources, &fResources, false);