Convert some third_party deps to GN

third_party/brotli/BUILD.gn

Index: third_party/brotli/BUILD.gn
diff --git a/third_party/brotli/BUILD.gn b/third_party/brotli/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..ede8134845faf278ac34eb9b1d394f5442115b44
--- /dev/null
+++ b/third_party/brotli/BUILD.gn
@@ -0,0 +1,25 @@
+# Copyright (c) 2013 The Chromium Authors. All rights reserved.

[scottmg, 2014/05/12 16:54:31]

2014

+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+source_set("brotli") {
+  sources = [
+    "src/brotli/dec/bit_reader.c",
+    "src/brotli/dec/bit_reader.h",
+    "src/brotli/dec/context.h",
+    "src/brotli/dec/decode.c",
+    "src/brotli/dec/decode.h",
+    "src/brotli/dec/dictionary.h",
+    "src/brotli/dec/huffman.c",
+    "src/brotli/dec/huffman.h",
+    "src/brotli/dec/prefix.h",
+    "src/brotli/dec/safe_malloc.c",
+    "src/brotli/dec/safe_malloc.h",
+    "src/brotli/dec/streams.c",
+    "src/brotli/dec/streams.h",
+    "src/brotli/dec/transform.h",
+    "src/brotli/dec/types.h",
+  ]
+
+  include_dirs = [ "src/brotli/dec" ]
+}