Pull GN @ r262225

Implement GN visibility in the build, which this new version implements

BUG=
R=scottmg@chromium.org

Review URL: https://codereview.chromium.org/217273004

git-svn-id: http://src.chromium.org/svn/trunk/src/build@262438 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

config/linux/pkg_config.gni

@@ -39,5 +39,8 @@ template("pkg_config") {
     if (defined(invoker.defines)) {
       defines = invoker.defines
     }
+    if (defined(invoker.visibility)) {
+      visibility = invoker.visibility
+    }
   }
 }

toolchain/nacl/BUILD.gn

@@ -2,7 +2,6 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-
 toolchain("x86_newlib") {
   toolprefix = "gen/sdk/toolchain/linux_x86_newlib/bin/x86_64-nacl-"
   cc = toolprefix + "gcc"

toolchain/win/BUILD.gn

@@ -2,13 +2,12 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+import("//build/config/win/visual_studio_version.gni")
 import("//build/toolchain/goma.gni")
 
 # Should only be running on Windows.
 assert(is_win)
 
-import("//build/config/win/visual_studio_version.gni")
-
 # Setup the Visual Studio state.
 #
 # Its arguments are the VS path and the compiler wrapper tool. It will write