Rewrite SkTRegistry to take any trivially-copyable type.

src/images/SkImageEncoder_Factory.cpp

Index: src/images/SkImageEncoder_Factory.cpp
diff --git a/src/images/SkImageEncoder_Factory.cpp b/src/images/SkImageEncoder_Factory.cpp
index 10f8d64decffaa6bad6af71bd6d6fa4ba697e162..844013c48ed0708f3c0c6c3dc27198aa7a7a4f3b 100644
--- a/src/images/SkImageEncoder_Factory.cpp
+++ b/src/images/SkImageEncoder_Factory.cpp
@@ -10,16 +10,16 @@
 #include "SkImageEncoder.h"
 #include "SkTRegistry.h"
 
-typedef SkTRegistry<SkImageEncoder*, SkImageEncoder::Type> EncodeReg;
+typedef SkTRegistry<SkImageEncoder*(*)(SkImageEncoder::Type)> EncodeReg;
 
 // Can't use the typedef here because of complex C++ corner cases
-template EncodeReg* SkTRegistry<SkImageEncoder*, SkImageEncoder::Type>::gHead;
+template EncodeReg* SkTRegistry<SkImageEncoder*(*)(SkImageEncoder::Type)>::gHead;
 
 SkImageEncoder* SkImageEncoder::Create(Type t) {
     SkImageEncoder* codec = NULL;
     const EncodeReg* curr = EncodeReg::Head();
     while (curr) {
-        if ((codec = curr->factory()(t)) != NULL) {
+        if ((codec = curr->data()(t)) != NULL) {
             return codec;
         }
         curr = curr->next();