Revert of Port most uses of SkOnce to SkLazyPtr.

src/fonts/SkRemotableFontMgr.cpp

Index: src/fonts/SkRemotableFontMgr.cpp
diff --git a/src/fonts/SkRemotableFontMgr.cpp b/src/fonts/SkRemotableFontMgr.cpp
index 633e91458bbb34d5c65fb3d64dc3ac5f877ebd5d..1139972848be68854deedef3b4d96858cbfba42d 100644
--- a/src/fonts/SkRemotableFontMgr.cpp
+++ b/src/fonts/SkRemotableFontMgr.cpp
@@ -7,7 +7,7 @@
 
 #include "SkRemotableFontMgr.h"
 
-#include "SkLazyPtr.h"
+#include "SkOnce.h"
 
 SkRemotableFontIdentitySet::SkRemotableFontIdentitySet(int count, SkFontIdentity** data)
       : fCount(count), fData(count)
@@ -16,11 +16,17 @@
     *data = fData;
 }
 
-SkRemotableFontIdentitySet* SkRemotableFontIdentitySet::NewEmptyImpl() {
-    return SkNEW(SkRemotableFontIdentitySet);
+static SkRemotableFontIdentitySet* gEmptyRemotableFontIdentitySet = NULL;
+static void cleanup_gEmptyRemotableFontIdentitySet() { gEmptyRemotableFontIdentitySet->unref(); }
+
+void SkRemotableFontIdentitySet::NewEmptyImpl(int) {
+    gEmptyRemotableFontIdentitySet = new SkRemotableFontIdentitySet();
 }
 
 SkRemotableFontIdentitySet* SkRemotableFontIdentitySet::NewEmpty() {
-    SK_DECLARE_STATIC_LAZY_PTR(SkRemotableFontIdentitySet, empty, NewEmptyImpl);
-    return SkRef(empty.get());
+    SK_DECLARE_STATIC_ONCE(once);
+    SkOnce(&once, SkRemotableFontIdentitySet::NewEmptyImpl, 0,
+           cleanup_gEmptyRemotableFontIdentitySet);
+    gEmptyRemotableFontIdentitySet->ref();
+    return gEmptyRemotableFontIdentitySet;
 }