Add a buildflag to use the handle verifier in a per module mode.

base/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.
 
 # HOW TO WRITE CONDITIONALS IN THIS FILE
 # ======================================
 #
 # In many other places, one would write a conditional that expresses all the
 # cases when a source file is used or unused, and then either add or subtract
 # it from the sources list in that case
@@ skipping 1161 matching lines @@
       "message_loop/message_pump_libevent.cc",
       "strings/string16.cc",
 
       # Not using sha1_win.cc because it may have caused a
       # regression to page cycler moz.
       "sha1_win.cc",
     ]
 
     deps += [ "//base/trace_event/etw_manifest:chrome_events_win" ]
 
+    public_deps += [ "//base/win:base_win_features" ]

[Nico, 2016/06/03 14:41:16]

it looks like the new feature define is only used in a cc file and its test. if
you add this to public_deps, then every file in every target depending on base
(almost all of them) will get a new -D flag, while it's really only needed in
two files. Maybe this should just be an ordinary dep in base and base_unittests?

[Sébastien Marchand, 2016/06/03 14:44:42]

Oh, I thought that we were strongly encouraged to always use the new buildflag
definition for any new build flag. I agree that in this case it make more sense
to just add the define for these 2 targets, I'll do this.

+
     if (is_component_build) {
       # Copy the VS runtime DLLs into the isolate so that they don't have to be
       # preinstalled on the target machine. The debug runtimes have a "d" at
       # the end.
       if (is_debug) {
         vcrt_suffix = "d"
       } else {
         vcrt_suffix = ""
       }
 
@@ skipping 1184 matching lines @@
 
   # GYP: //base.gyp:base_java_unittest_support
   android_library("base_java_unittest_support") {
     deps = [
       ":base_java",
     ]
     java_files =
         [ "test/android/java/src/org/chromium/base/ContentUriTestUtils.java" ]
   }
 }