Rewrite SkTRegistry to take any trivially-copyable type.

Obviously these are all currently function pointers of type T(*)(P) for various
T and P.  In bench refactoring, I'm trying to register a function pointer of
type T(*)(), which can't be done as is (passing P=void doesn't work).  This
also lets us register things like primitives, which is conceivable useful.

BUG=
R=reed@google.com, scroggo@google.com

Review URL: https://codereview.chromium.org/23453031

git-svn-id: http://skia.googlecode.com/svn/trunk@11082 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/images/SkImageDecoder_libbmp.cpp b/src/images/SkImageDecoder_libbmp.cpp
index 73e7a20..2edd57c 100644
--- a/src/images/SkImageDecoder_libbmp.cpp
+++ b/src/images/SkImageDecoder_libbmp.cpp
@@ -14,7 +14,6 @@
 #include "SkStream.h"
 #include "SkStreamHelpers.h"
 #include "SkTDArray.h"
-#include "SkTRegistry.h"
 
 class SkBMPImageDecoder : public SkImageDecoder {
 public:
@@ -52,7 +51,7 @@
     return NULL;
 }
 
-static SkTRegistry<SkImageDecoder*, SkStream*> gReg(sk_libbmp_dfactory);
+static SkImageDecoder_DecodeReg gReg(sk_libbmp_dfactory);
 
 static SkImageDecoder::Format get_format_bmp(SkStream* stream) {
     if (is_bmp(stream)) {
@@ -61,7 +60,7 @@
     return SkImageDecoder::kUnknown_Format;
 }
 
-static SkTRegistry<SkImageDecoder::Format, SkStream*> gFormatReg(get_format_bmp);
+static SkImageDecoder_FormatReg gFormatReg(get_format_bmp);
 
 ///////////////////////////////////////////////////////////////////////////////