chromium: add unset-madv_free.patch

srcpkgs/chromium/patches/unset-madv_free.patch

@@ -0,0 +1,14 @@
+--- third_party/WebKit/Source/wtf/allocator/PageAllocator.cpp
++++ third_party/WebKit/Source/wtf/allocator/PageAllocator.cpp
+@@ -41,6 +41,11 @@
+ #include <errno.h>
+ #include <sys/mman.h>
+ 
++#if OS(LINUX) && defined(MADV_FREE)
++// Added in Linux 4.5, but it breaks the sandbox.
++#undef MADV_FREE
++#endif
++
+ #ifndef MADV_FREE
+ #define MADV_FREE MADV_DONTNEED
+ #endif

srcpkgs/chromium/template

@@ -2,7 +2,7 @@
 pkgname=chromium
 # See http://www.chromium.org/developers/calendar for the latest version
 version=52.0.2743.116
-revision=1
+revision=2
 short_desc="Google's attempt at creating a safer, faster, and more stable browser"
 maintainer="Juan RP <xtraeme@voidlinux.eu>"
 homepage="http://www.chromium.org/"