Added memory-monitor for ChromeOS.

content/test/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/chrome_build.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
@@ skipping 1077 matching lines @@
     "../browser/media/capture/cursor_renderer_aura_unittest.cc",
     "../browser/media/capture/web_contents_audio_input_stream_unittest.cc",
     "../browser/media/capture/web_contents_video_capture_device_unittest.cc",
     "../browser/media/cdm_service_impl_unittest.cc",
     "../browser/media/media_internals_unittest.cc",
     "../browser/media/midi_host_unittest.cc",
     "../browser/media/session/audio_focus_manager_unittest.cc",
     "../browser/media/session/media_session_controller_unittest.cc",
     "../browser/media/session/media_session_uma_helper_unittest.cc",
     "../browser/memory/memory_coordinator_unittest.cc",
-    "../browser/memory/memory_monitor_linux_unittest.cc",
     "../browser/memory/memory_monitor_win_unittest.cc",
     "../browser/memory/test_memory_monitor.cc",
     "../browser/memory/test_memory_monitor.h",
     "../browser/net/quota_policy_cookie_store_unittest.cc",
     "../browser/notification_service_impl_unittest.cc",
     "../browser/notifications/notification_database_data_unittest.cc",
     "../browser/notifications/notification_database_unittest.cc",
     "../browser/notifications/notification_id_generator_unittest.cc",
     "../browser/notifications/platform_notification_context_unittest.cc",
     "../browser/notifications/type_converters_unittest.cc",
@@ skipping 204 matching lines @@
     "../renderer/scheduler/resource_dispatch_throttler_unittest.cc",
     "../renderer/screen_orientation/screen_orientation_dispatcher_unittest.cc",
     "../renderer/skia_benchmarking_extension_unittest.cc",
     "fileapi_test_file_set.cc",
     "fileapi_test_file_set.h",
     "image_decoder_test.cc",
     "image_decoder_test.h",
     "run_all_unittests.cc",
   ]
 
+  # ChromeOS also defines linux but their memory-monitors conflict.
+  if (is_chromeos) {
+    sources += [ "../browser/memory/memory_monitor_chromeos_unittest.cc" ]
+  } else {
+    sources += [ "../browser/memory/memory_monitor_linux_unittest.cc" ]
+  }
+
   if (is_android || is_linux || is_mac || is_win) {
     data = [
       "$root_out_dir/content_shell.pak",
       "data/",
       "//media/test/data/",
     ]
   }
 
   configs += [ "//build/config:precompiled_headers" ]
 
@@ skipping 338 matching lines @@
   if (is_android) {
     deps += [ "//testing/android/native_test:native_test_native_code" ]
   }
 }
 
 group("fuzzers") {
   deps = [
     "//content/test/fuzzer",
   ]
 }