use unique_ptr for codec factories

Will need guards for android (at least)

Bug: skia:
Change-Id: I2bb8e656997984489ef1f2e41cd3d301c4e7b947
Reviewed-on: https://skia-review.googlesource.com/26040
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Reed <reed@google.com>
diff --git a/src/codec/SkBmpBaseCodec.cpp b/src/codec/SkBmpBaseCodec.cpp
index 0e74435..1071ff3 100644
--- a/src/codec/SkBmpBaseCodec.cpp
+++ b/src/codec/SkBmpBaseCodec.cpp
@@ -9,8 +9,9 @@
 
 SkBmpBaseCodec::~SkBmpBaseCodec() {}
 
-SkBmpBaseCodec::SkBmpBaseCodec(int width, int height, const SkEncodedInfo& info, SkStream* stream,
+SkBmpBaseCodec::SkBmpBaseCodec(int width, int height, const SkEncodedInfo& info,
+                               std::unique_ptr<SkStream> stream,
                                uint16_t bitsPerPixel, SkCodec::SkScanlineOrder rowOrder)
-    : INHERITED(width, height, info, stream, bitsPerPixel, rowOrder)
+    : INHERITED(width, height, info, std::move(stream), bitsPerPixel, rowOrder)
     , fSrcBuffer(sk_malloc_flags(this->srcRowBytes(), 0))
 {}