Bug 1078837 part 1 - Move CustomElf::mappable to BaseElf. r=nfroyd

mozglue/linker/BaseElf.h

@@ -33,8 +33,11 @@ public:
    */
   const Elf::Sym *GetSymbol(const char *symbol, unsigned long hash) const;
 
-  BaseElf(const char *path)
-  : LibHandle(path) { }
+  BaseElf(const char *path, Mappable *mappable = nullptr)
+  : LibHandle(path)
+  , mappable(mappable)
+  {
+  }
 
 protected:
    /**
@@ -75,6 +78,9 @@ public:
     return reinterpret_cast<const T *>(base + offset);
   }
 
+  /* Appropriated Mappable */
+  mozilla::RefPtr<Mappable> mappable;
+
   /* Base address where the library is loaded */
   MappedPtr base;
 

mozglue/linker/CustomElf.h

@@ -66,9 +66,8 @@ private:
    * Private constructor
    */
   CustomElf(Mappable *mappable, const char *path)
-  : BaseElf(path)
+  : BaseElf(path, mappable)
   , link_map()
-  , mappable(mappable)
   , init(0)
   , fini(0)
   , initialized(false)
@@ -136,9 +135,6 @@ private:
     return CallFunction(GetPtr(addr));
   }
 
-  /* Appropriated Mappable */
-  mozilla::RefPtr<Mappable> mappable;
-
   /* List of dependent libraries */
   std::vector<mozilla::RefPtr<LibHandle> > dependencies;