[PDF] Fix printing crashes caused by font streams that don't support getMemoryBase().

src/pdf/SkPDFStream.cpp

Index: src/pdf/SkPDFStream.cpp
diff --git a/src/pdf/SkPDFStream.cpp b/src/pdf/SkPDFStream.cpp
index 4ae1f39d26f18dc9783c5bcf1decb75c7a828b05..c96a70f2e5bbfb802e29f376606f7045c225833e 100644
--- a/src/pdf/SkPDFStream.cpp
+++ b/src/pdf/SkPDFStream.cpp
@@ -64,7 +64,7 @@ void SkPDFStream::emitObject(SkWStream* stream, SkPDFCatalog* catalog,
 
     this->INHERITED::emitObject(stream, catalog, false);
     stream->writeText(" stream\n");
-    stream->write(fData->getMemoryBase(), fData->getLength());
+    stream->writeStream(fData.get(), fData->getLength());
     stream->writeText("\nendstream");
 }