[PATCH] ieframe: Make sure that history initial state is fully initialized.

[Dmitry Timoshkov]

In addition to 41cfc86d8dd65c71a7c81b826d02ac0a99050d6a.

This fixes another crash when browsing help file that I have here.

Signed-off-by: Dmitry Timoshkov 
---
 dlls/ieframe/dochost.c | 4 ++--
 dlls/ieframe/ieframe.h | 5 +++++
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/dlls/ieframe/dochost.c b/dlls/ieframe/dochost.c
index 7717f786d52..4e1e1d82fa1 100644
--- a/dlls/ieframe/dochost.c
+++ b/dlls/ieframe/dochost.c
@@ -436,7 +436,7 @@ static void update_travellog(DocHost *This)
     }

if(!This->travellog.log) {
-        This->travellog.log = heap_alloc(4 * sizeof(*This->travellog.log));
+        This->travellog.log = heap_alloc_zero(4 * sizeof(*This->travellog.log));
         if(!This->travellog.log)
             return;

@@ -444,7 +444,7 @@ static void update_travellog(DocHost *This)
     }else if(This->travellog.size < This->travellog.position+1) {
         travellog_entry_t *new_travellog;

-        new_travellog = heap_realloc(This->travellog.log, This->travellog.size*2*sizeof(*This->travellog.log));
+        new_travellog = heap_realloc_zero(This->travellog.log, This->travellog.size*2*sizeof(*This->travellog.log));
         if(!new_travellog)
             return;

diff --git a/dlls/ieframe/ieframe.h b/dlls/ieframe/ieframe.h
index 633906a70ca..1bae1f6781d 100644
--- a/dlls/ieframe/ieframe.h
+++ b/dlls/ieframe/ieframe.h
@@ -340,6 +340,11 @@ static inline void unlock_module(void) {
     InterlockedDecrement(&module_ref);
 }

+static inline void * __WINE_ALLOC_SIZE(2) heap_realloc_zero(void *mem, SIZE_T len)
+{
+    return HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, mem, len);
+}
+
 static inline LPWSTR heap_strdupW(LPCWSTR str)
 {
     LPWSTR ret = NULL;