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

chrome/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/buildflag_header.gni")
 import("//chrome/common/features.gni")
 import("//chrome/version.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
 import("//tools/grit/grit_rule.gni")
 import("//tools/ipc_fuzzer/ipc_fuzzer.gni")
@@ skipping 279 matching lines @@
     if (safe_browsing_mode == 1) {
       sources +=
           rebase_path(gypi_values.chrome_common_full_safe_browsing_sources,
                       ".",
                       "//chrome")
     }
   }
 
   if (enable_ipc_fuzzer) {
     configs += [ "//tools/ipc_fuzzer:ipc_fuzzer_config" ]
-    sources += [
-      "external_ipc_dumper.cc",
-      "external_ipc_dumper.h",
-    ]
   }
 }
 
 # GYP version: chrome/common_constants.gyp:version_header
 process_version("version_header") {
   # TODO(brettw) this should have more reduced visibility, but chrome/browser
   # currently depends on this.
   #visibility = [ ":*" ]
 
   # This one just uses the custom template and no separate sources.
@@ skipping 127 matching lines @@
 mojom("mojo_bindings") {
   sources = [
     "image_decoder.mojom",
     "resource_usage_reporter.mojom",
   ]
 
   public_deps = [
     "//skia/public/interfaces",
   ]
 }