Remove CJBig2_Object, CJBig2_Module, and friends.

core/include/fxcrt/fx_memory.h

Index: core/include/fxcrt/fx_memory.h
diff --git a/core/include/fxcrt/fx_memory.h b/core/include/fxcrt/fx_memory.h
index c607de2159fe47c6458d329097951a4ca83a448e..88e6873eddd590f62dea281cc8bb643862eaee85 100644
--- a/core/include/fxcrt/fx_memory.h
+++ b/core/include/fxcrt/fx_memory.h
@@ -49,6 +49,14 @@ inline void* FX_AllocOrDie2D(size_t w, size_t h, size_t member_size) {
   return nullptr;             // Suppress compiler warning.
 }
 
+inline void* FX_AllocOrDie3D(size_t w, size_t h, size_t d, size_t member_size) {
+  if (w < std::numeric_limits<size_t>::max() / h) {
+    return FX_AllocOrDie2D(w * h, d, member_size);
+  }
+  FX_OutOfMemoryTerminate();  // Never returns.
+  return nullptr;             // Suppress compiler warning.
+}
+
 inline void* FX_ReallocOrDie(void* ptr,
                              size_t num_members,
                              size_t member_size) {
@@ -62,6 +70,7 @@ inline void* FX_ReallocOrDie(void* ptr,
 // Never returns NULL.
 #define FX_Alloc(type, size) (type*) FX_AllocOrDie(size, sizeof(type))
 #define FX_Alloc2D(type, w, h) (type*) FX_AllocOrDie2D(w, h, sizeof(type))
+#define FX_Alloc3D(type, w, h, d) (type*) FX_AllocOrDie3D(w, h, d, sizeof(type))
 #define FX_Realloc(type, ptr, size) \
   (type*) FX_ReallocOrDie(ptr, size, sizeof(type))