Add Clang static analyzer to Clang toolchain defs in GN

build/toolchain/clang_static_analyzer.gni

Index: build/toolchain/clang_static_analyzer.gni
diff --git a/build/toolchain/clang_static_analyzer.gni b/build/toolchain/clang_static_analyzer.gni
new file mode 100644
index 0000000000000000000000000000000000000000..b689c1b7c230e67fc51609602eb7aff7da54bdbb
--- /dev/null
+++ b/build/toolchain/clang_static_analyzer.gni
@@ -0,0 +1,10 @@
+# Copyright (c) 2017 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.
+
+# Defines the configuration of Clang static analysis tools.

[Nico, 2017/01/11 20:20:05]

Can you

a) update
https://chromium.googlesource.com/chromium/src/+/master/docs/clang_static_ana...
with the current state of the world (make sure to add a disclaimer that it's in
early bring-up up as of early 2017)

b) add a link to that in a comment here? ("# See docs/clang_static_analyzer.md",
or the link I pasted)

[Kevin M, 2017/01/18 23:04:24]

Done.

+
+declare_args() {
+  # Uses the Clang static analysis tools during compilation.
+  use_clang_static_analyzer = false
+}