Merge 86106

Source/JavaScriptCore/wtf/FastMalloc.cpp

Index: Source/JavaScriptCore/wtf/FastMalloc.cpp
===================================================================
--- Source/JavaScriptCore/wtf/FastMalloc.cpp	(revision 86171)
+++ Source/JavaScriptCore/wtf/FastMalloc.cpp	(working copy)
@@ -183,15 +183,12 @@
 
 char* fastStrDup(const char* src)
 {
-    int len = strlen(src) + 1;
+    size_t len = strlen(src) + 1;
     char* dup = static_cast<char*>(fastMalloc(len));
-
-    if (dup)
-        memcpy(dup, src, len);
-
+    memcpy(dup, src, len);
     return dup;
 }
-    
+
 TryMallocReturnValue tryFastZeroedMalloc(size_t n) 
 {
     void* result;