Move IPC fuzzer switches and helpers from chrome/common to content/common.

content/common/BUILD.gn

 # Copyright 2014 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/features.gni")
 import("//build/config/ui.gni")
 import("//content/common/common.gni")
 import("//media/media_options.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
+import("//tools/ipc_fuzzer/ipc_fuzzer.gni")
 if (is_mac) {
   import("//build/config/mac/mac_sdk.gni")
 }
 
 source_set("common") {
   # Targets external to content should always link to the public API.
   # In addition, targets outside of the content component (shell and tests)
   # must not link to this because it will duplicate the code in the component
   # build.
   visibility = [ "//content/*" ]
@@ skipping 173 matching lines @@
         "sandbox_linux/sandbox_bpf_base_policy_linux.h",
       ]
     }
     if (is_android) {
       sources -= [
         "sandbox_linux/android/sandbox_bpf_base_policy_android.cc",
         "sandbox_linux/android/sandbox_bpf_base_policy_android.h",
       ]
     }
   }
+
+  if (enable_ipc_fuzzer) {
+    configs += [ "//tools/ipc_fuzzer:ipc_fuzzer_config" ]
+    sources += [
+      "external_ipc_dumper.cc",
+      "external_ipc_dumper.h",
+    ]
+  }
 }
 
 # See comment at the top of //content/BUILD.gn for how this works.
 group("for_content_tests") {
   visibility = [ "//content/test/*" ]
   if (!is_component_build) {
     public_deps = [
       ":common",
     ]
   }
@@ skipping 22 matching lines @@
   public_deps = [
     "//components/leveldb/public/interfaces",
     "//components/mus/public/interfaces",
     "//services/shell/public/interfaces",
     "//skia/public/interfaces",
     "//third_party/WebKit/public:mojo_bindings",
     "//ui/gfx/geometry/mojo",
     "//url/mojo:url_mojom_origin",
   ]
 }