Roll base to 5e00da80f6adb7082d1c0e88d3274cf87cc43bc5 and tonic to f7acabb8fa6c91124486a41194eac3cd…

build/config/BUILD.gn

 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/allocator.gni")
 import("//build/config/chrome_build.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/module_args/v8.gni")
 
@@ skipping 117 matching lines @@
   } else {
     defines += [ "NVALGRIND" ]
     if (!is_nacl) {
       # NaCl always enables dynamic annotations. Currently this value is set to
       # 1 for all .nexes.
       defines += [ "DYNAMIC_ANNOTATIONS_ENABLED=0" ]
     }
   }
 }
 
+# TODO(vtl): Chromium supports precompiled headers (on a per-target basis), but
+# we don't. Stuff from //base depends on this. Add stuff here if we ever want
+# precompiled headers.
+config("precompiled_headers") {
+}
+
 # Default libraries ------------------------------------------------------------
 
 # This config defines the default libraries applied to all targets.
 config("default_libs") {
   if (is_android) {
     # Android uses -nostdlib so we need to add even libc here.
     libs = [
       # TODO(brettw) write a version of this, hopefully we can express this
       # without forking out to GCC just to get the library name. The android
       # toolchain directory should probably be extracted into a .gni file that
@@ skipping 19 matching lines @@
       "CoreFoundation.framework",
       "CoreGraphics.framework",
       "CoreText.framework",
       "Foundation.framework",
       "UIKit.framework",
     ]
   } else if (is_linux) {
     libs = [ "dl" ]
   }
 }