Update libxml to 2.7.7.

third_party/libxml/include/libxml/xmlmemory.h

Index: third_party/libxml/include/libxml/xmlmemory.h
diff --git a/third_party/libxml/include/libxml/xmlmemory.h b/third_party/libxml/include/libxml/xmlmemory.h
index 235721ceacb4c1b6f6195731cb89a513e21a95da..17e375a3c9ad6eb95b60954d3374ab29113acee5 100644
--- a/third_party/libxml/include/libxml/xmlmemory.h
+++ b/third_party/libxml/include/libxml/xmlmemory.h
@@ -20,7 +20,7 @@
  *
  * DEBUG_MEMORY replaces the allocator with a collect and debug
  * shell to the libc allocator.
- * DEBUG_MEMORY should only be activated when debugging 
+ * DEBUG_MEMORY should only be activated when debugging
  * libxml i.e. if libxml has been configured with --with-debug-mem too.
  */
 /* #define DEBUG_MEMORY_FREED */
@@ -35,7 +35,7 @@
 /**
  * DEBUG_MEMORY_LOCATION:
  *
- * DEBUG_MEMORY_LOCATION should be activated only when debugging 
+ * DEBUG_MEMORY_LOCATION should be activated only when debugging
  * libxml i.e. if libxml has been configured with --with-debug-mem too.
  */
 #ifdef DEBUG_MEMORY_LOCATION
@@ -63,7 +63,7 @@ typedef void (XMLCALL *xmlFreeFunc)(void *mem);
  *
  * Returns a pointer to the newly allocated block or NULL in case of error.
  */
-typedef void *(XMLCALL *xmlMallocFunc)(size_t size);
+typedef void *(LIBXML_ATTR_ALLOC_SIZE(1) XMLCALL *xmlMallocFunc)(size_t size);
 
 /**
  * xmlReallocFunc:
@@ -88,11 +88,11 @@ typedef char *(XMLCALL *xmlStrdupFunc)(const char *str);
 
 /*
  * The 4 interfaces used for all memory handling within libxml.
-LIBXML_DLL_IMPORT extern xmlFreeFunc xmlFree;
-LIBXML_DLL_IMPORT extern xmlMallocFunc xmlMalloc;
-LIBXML_DLL_IMPORT extern xmlMallocFunc xmlMallocAtomic;
-LIBXML_DLL_IMPORT extern xmlReallocFunc xmlRealloc;
-LIBXML_DLL_IMPORT extern xmlStrdupFunc xmlMemStrdup;
+LIBXML_DLL_IMPORT xmlFreeFunc xmlFree;
+LIBXML_DLL_IMPORT xmlMallocFunc xmlMalloc;
+LIBXML_DLL_IMPORT xmlMallocFunc xmlMallocAtomic;
+LIBXML_DLL_IMPORT xmlReallocFunc xmlRealloc;
+LIBXML_DLL_IMPORT xmlStrdupFunc xmlMemStrdup;
  */
 
 /*
@@ -105,18 +105,18 @@ XMLPUBFUN int XMLCALL
 			 xmlMallocFunc mallocFunc,
 			 xmlReallocFunc reallocFunc,
 			 xmlStrdupFunc strdupFunc);
-XMLPUBFUN int XMLCALL     
+XMLPUBFUN int XMLCALL
 	xmlMemGet	(xmlFreeFunc *freeFunc,
 			 xmlMallocFunc *mallocFunc,
 			 xmlReallocFunc *reallocFunc,
 			 xmlStrdupFunc *strdupFunc);
-XMLPUBFUN int XMLCALL     
+XMLPUBFUN int XMLCALL
 	xmlGcMemSetup	(xmlFreeFunc freeFunc,
 			 xmlMallocFunc mallocFunc,
 			 xmlMallocFunc mallocAtomicFunc,
 			 xmlReallocFunc reallocFunc,
 			 xmlStrdupFunc strdupFunc);
-XMLPUBFUN int XMLCALL     
+XMLPUBFUN int XMLCALL
 	xmlGcMemGet	(xmlFreeFunc *freeFunc,
 			 xmlMallocFunc *mallocFunc,
 			 xmlMallocFunc *mallocAtomicFunc,
@@ -126,42 +126,44 @@ XMLPUBFUN int XMLCALL
 /*
  * Initialization of the memory layer.
  */
-XMLPUBFUN int XMLCALL	
+XMLPUBFUN int XMLCALL
 	xmlInitMemory	(void);
 
-/* 
+/*
  * Cleanup of the memory layer.
  */
-XMLPUBFUN void XMLCALL                
+XMLPUBFUN void XMLCALL
                 xmlCleanupMemory        (void);
 /*
  * These are specific to the XML debug memory wrapper.
  */
-XMLPUBFUN int XMLCALL	
+XMLPUBFUN int XMLCALL
 	xmlMemUsed	(void);
-XMLPUBFUN int XMLCALL	
+XMLPUBFUN int XMLCALL
 	xmlMemBlocks	(void);
-XMLPUBFUN void XMLCALL	
+XMLPUBFUN void XMLCALL
 	xmlMemDisplay	(FILE *fp);
-XMLPUBFUN void XMLCALL	
+XMLPUBFUN void XMLCALL
+	xmlMemDisplayLast(FILE *fp, long nbBytes);
+XMLPUBFUN void XMLCALL
 	xmlMemShow	(FILE *fp, int nr);
-XMLPUBFUN void XMLCALL	
+XMLPUBFUN void XMLCALL
 	xmlMemoryDump	(void);
-XMLPUBFUN void * XMLCALL	
-	xmlMemMalloc	(size_t size);
-XMLPUBFUN void * XMLCALL	
+XMLPUBFUN void * XMLCALL
+	xmlMemMalloc	(size_t size) LIBXML_ATTR_ALLOC_SIZE(1);
+XMLPUBFUN void * XMLCALL
 	xmlMemRealloc	(void *ptr,size_t size);
-XMLPUBFUN void XMLCALL	
+XMLPUBFUN void XMLCALL
 	xmlMemFree	(void *ptr);
-XMLPUBFUN char * XMLCALL	
+XMLPUBFUN char * XMLCALL
 	xmlMemoryStrdup	(const char *str);
-XMLPUBFUN void * XMLCALL  
-	xmlMallocLoc	(size_t size, const char *file, int line);
-XMLPUBFUN void * XMLCALL	
+XMLPUBFUN void * XMLCALL
+	xmlMallocLoc	(size_t size, const char *file, int line) LIBXML_ATTR_ALLOC_SIZE(1);
+XMLPUBFUN void * XMLCALL
 	xmlReallocLoc	(void *ptr, size_t size, const char *file, int line);
-XMLPUBFUN void * XMLCALL	
-	xmlMallocAtomicLoc (size_t size, const char *file, int line);
-XMLPUBFUN char * XMLCALL	
+XMLPUBFUN void * XMLCALL
+	xmlMallocAtomicLoc (size_t size, const char *file, int line) LIBXML_ATTR_ALLOC_SIZE(1);
+XMLPUBFUN char * XMLCALL
 	xmlMemStrdupLoc	(const char *str, const char *file, int line);