Rewrite SkTRegistry to take any trivially-copyable type.

src/images/SkImageDecoder_libjpeg.cpp

Index: src/images/SkImageDecoder_libjpeg.cpp
diff --git a/src/images/SkImageDecoder_libjpeg.cpp b/src/images/SkImageDecoder_libjpeg.cpp
index 2bd48186ac5079431bd5c7832d40c99e6d884ee6..d50e4eb015689335b3910c97f58104bb41dc14c7 100644
--- a/src/images/SkImageDecoder_libjpeg.cpp
+++ b/src/images/SkImageDecoder_libjpeg.cpp
@@ -1136,8 +1136,6 @@ static bool is_jpeg(SkStream* stream) {
     return true;
 }
 
-#include "SkTRegistry.h"
-
 static SkImageDecoder* sk_libjpeg_dfactory(SkStream* stream) {
     if (is_jpeg(stream)) {
         return SkNEW(SkJPEGImageDecoder);
@@ -1157,6 +1155,6 @@ static SkImageEncoder* sk_libjpeg_efactory(SkImageEncoder::Type t) {
 }
 
 
-static SkTRegistry<SkImageDecoder*, SkStream*> gDReg(sk_libjpeg_dfactory);
-static SkTRegistry<SkImageDecoder::Format, SkStream*> gFormatReg(get_format_jpeg);
-static SkTRegistry<SkImageEncoder*, SkImageEncoder::Type> gEReg(sk_libjpeg_efactory);
+static SkImageDecoder_DecodeReg gDReg(sk_libjpeg_dfactory);
+static SkImageDecoder_FormatReg gFormatReg(get_format_jpeg);
+static SkImageEncoder_EncodeReg gEReg(sk_libjpeg_efactory);