Improve Visual Studio debug visualizers

third_party/WebKit/Source/platform/wtf/BUILD.gn

 # Copyright 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.
 
 assert(!is_ios)
 
 import("//testing/test.gni")
 import("//third_party/WebKit/Source/config.gni")
 
 visibility = [
@@ skipping 262 matching lines @@
     "//third_party/icu",
   ]
 
   # Rules changing the |sources| list are temporarily commented out, until
   # those files are actually moved to here.
 
   if (is_win) {
     sources -= [ "ThreadingPthreads.cpp" ]
 
     cflags = [ "/wd4068" ]  # Unknown pragma.
+
+    # Inject Visual Studio debug visualizers for our types into all targets
+    # that reference this.
+    all_dependent_configs = [ "//tools/win/DebugVisualizers:webkit" ]
   } else {
     # Non-Windows.
     sources -= [
       "ThreadSpecificWin.cpp",
       "ThreadingWin.cpp",
     ]
   }
 
   if (is_android) {
     libs = [ "log" ]
@@ skipping 78 matching lines @@
   ]
 
   deps = [
     ":wtf",
     "//base",
     "//base/test:test_support",
     "//testing/gmock",
     "//testing/gtest",
   ]
 }