detach -> release

The C++ standard library uses the name "release" for the operation we call "detach".

Rewriting each "detach(" to "release(" brings us a step closer to using standard library types directly (e.g. std::unique_ptr instead of SkAutoTDelete).

This was a fairly blind transformation.  There may have been unintentional conversions in here, but it's probably for the best to have everything uniformly say "release".

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1809733002

Review URL: https://codereview.chromium.org/1809733002
diff --git a/src/codec/SkWbmpCodec.cpp b/src/codec/SkWbmpCodec.cpp
index 706d5dd..90ee322 100644
--- a/src/codec/SkWbmpCodec.cpp
+++ b/src/codec/SkWbmpCodec.cpp
@@ -168,7 +168,7 @@
     }
     SkImageInfo info = SkImageInfo::Make(size.width(), size.height(),
             kGray_8_SkColorType, kOpaque_SkAlphaType);
-    return new SkWbmpCodec(info, streamDeleter.detach());
+    return new SkWbmpCodec(info, streamDeleter.release());
 }
 
 int SkWbmpCodec::onGetScanlines(void* dst, int count, size_t dstRowBytes) {