Create MemoryMonitor and Windows implementation.

components/memory_coordinator/browser/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.
 
 static_library("browser") {
   sources = [
     "memory_coordinator.cc",
     "memory_coordinator.h",
+    "memory_monitor.h",
+    "memory_monitor_win.cc",

[bashi, 2016/08/11 22:03:12]

Should we have "if (is_win) { ... }" block?

[chrisha, 2016/08/12 20:14:00]

No need, as _win (and _linux, _chromeos, _mac, etc) files are automatically
added to only platform specific builds. This is the standard way it appears to
be done in GN.

https://cs.chromium.org/search/?q=file:BUILD.gn+_win.cc&sq=package:chromium&t...

[bashi, 2016/08/15 23:29:40]

I didn't know that. Thanks for the explanation.

+    "memory_monitor_win.h",
   ]
 
   deps = [
     "//base",
     "//components/memory_coordinator/public/interfaces",
   ]
 
   public_deps = [
     "//components/memory_coordinator/common",
   ]
 }
 
 source_set("unit_tests") {
   testonly = true
 
   sources = [
     "memory_coordinator_unittest.cc",
+    "memory_monitor_win_unittest.cc",
   ]
 
   deps = [
     ":browser",
     "//testing/gtest",
   ]
 }