Added versioning for PPB_Core::MemAlloc and MemFree

ppapi/shared_impl/char_set_impl.h

Index: ppapi/shared_impl/char_set_impl.h
diff --git a/ppapi/shared_impl/char_set_impl.h b/ppapi/shared_impl/char_set_impl.h
index 41411a4f836aad407358f76b047038d2fc7f8f00..48913464dc6fc7ec1e0d4d053db26a86a56b0ab5 100644
--- a/ppapi/shared_impl/char_set_impl.h
+++ b/ppapi/shared_impl/char_set_impl.h
@@ -8,7 +8,7 @@
 #include "base/basictypes.h"
 #include "ppapi/c/dev/ppb_char_set_dev.h"
 
-struct PPB_Core;
+struct PPB_Memory_Dev;
 
 namespace ppapi {
 
@@ -16,14 +16,14 @@ namespace ppapi {
 // between the proxy and the renderer.
 class CharSetImpl {
  public:
-  static char* UTF16ToCharSet(const PPB_Core* core,
+  static char* UTF16ToCharSet(const PPB_Memory_Dev* memory,
                               const uint16_t* utf16,
                               uint32_t utf16_len,
                               const char* output_char_set,
                               PP_CharSet_ConversionError on_error,
                               uint32_t* output_length);
 
-  static uint16_t* CharSetToUTF16(const PPB_Core* core,
+  static uint16_t* CharSetToUTF16(const PPB_Memory_Dev* memory,
                                   const char* input,
                                   uint32_t input_len,
                                   const char* input_char_set,