chromium: update to 51.0.2704.79.

Closes #4261

srcpkgs/chromium/files/musl-patches/musl-sandbox.patch

@@ -32,22 +32,6 @@
  }
 --- ./sandbox/linux/seccomp-bpf-helpers/syscall_sets.cc.orig
 +++ ./sandbox/linux/seccomp-bpf-helpers/syscall_sets.cc
-@@ -416,12 +416,12 @@
- #endif
-     case __NR_epoll_create1:
-     case __NR_epoll_ctl:
-+    case __NR_epoll_pwait:
-       return true;
-     default:
- #if defined(__x86_64__)
-     case __NR_epoll_ctl_old:
- #endif
--    case __NR_epoll_pwait:
- #if defined(__x86_64__)
-     case __NR_epoll_wait_old:
- #endif
---- ./sandbox/linux/seccomp-bpf-helpers/syscall_sets.cc.orig
-+++ ./sandbox/linux/seccomp-bpf-helpers/syscall_sets.cc
 @@ -494,6 +494,7 @@
      case __NR_mlock:
      case __NR_munlock:

srcpkgs/chromium/patches/fix-png-decoder-build.patch

@@ -0,0 +1,11 @@
+--- third_party/WebKit/Source/platform/image-decoders/png/PNGImageDecoder.cpp.orig	2016-06-01 17:42:30.396115414 +0200
++++ third_party/WebKit/Source/platform/image-decoders/png/PNGImageDecoder.cpp	2016-06-01 17:43:05.182117208 +0200
+@@ -234,7 +234,7 @@
+ #endif
+             png_uint_32 profileLength = 0;
+             if (png_get_iCCP(png, info, &profileName, &compressionType, &profile, &profileLength)) {
+-                setColorProfileAndTransform(profile, profileLength, imageHasAlpha, false /* useSRGB */);
++                setColorProfileAndTransform((const char*) profile, profileLength, imageHasAlpha, false /* useSRGB */);
+             }
+         }
+ #endif // PNG_iCCP_SUPPORTED

srcpkgs/chromium/template

@@ -1,14 +1,14 @@
 # Template file for 'chromium'
 pkgname=chromium
 # See http://www.chromium.org/developers/calendar for the latest version
-version=50.0.2661.102
-revision=2
+version=51.0.2704.79
+revision=1
 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/"
 license="BSD"
 distfiles="https://commondatastorage.googleapis.com/chromium-browser-official/${pkgname}-${version}.tar.xz"
-checksum=12135ef890c2bd13b653a06e2a44e8f251a65fe9e91404c792d27e346c5d57c6
+checksum=2323da80158f86e465f8fe257f681816ad58d831aaebddbb5337d72c5a86a036
 
 only_for_archs="i686 x86_64 x86_64-musl"
 lib32disabled=yes