mash: Store chrome --mash crash key metadata in shared memory

chrome/app/mash/BUILD.gn

 # Copyright 2016 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/nacl/config.gni")
 import("//chrome/common/features.gni")
 import("//services/catalog/public/tools/catalog.gni")
 import("//services/service_manager/public/service_manifest.gni")
 
 assert(enable_package_mash_services)
@@ skipping 20 matching lines @@
     "//services/service_manager/public/interfaces",
     "//services/service_manager/runner:init",
     "//services/service_manager/runner/common",
     "//services/service_manager/runner/host:lib",
     "//services/service_manager/standalone",
     "//services/ui/public/interfaces:constants",
     "//url",
   ]
 
   if (is_chromeos) {
-    deps += [ "//ash/resources" ]
+    sources += [
+      "mash_crash_keys.cc",
+      "mash_crash_keys.h",
+    ]
+    deps += [
+      "//ash/resources",
+      "//breakpad:client",
+      "//components/crash/core/common",
+    ]
   }
 
   if (is_linux && !is_android) {
     deps += [ "//components/font_service:lib" ]
   }
 }
 
 service_manifest("mash_manifest") {
   name = "chrome_mash"
   source = "chrome_mash_manifest.json"
@@ skipping 36 matching lines @@
   catalog = ":catalog"
   generated_function_name = "CreateChromeMashCatalog"
 }
 
 source_set("mash_service_overrides") {
   testonly = true
   data = [
     "mash_service_overrides.json",
   ]
 }