Crashpad Windows: Use the Crashpad client instead of Breakpad on Windows

build/secondary/third_party/crashpad/crashpad/handler/BUILD.gn

+# Copyright 2015 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.
+
+source_set("handler_lib") {
+  sources = [
+    "crash_report_upload_thread.cc",
+    "crash_report_upload_thread.h",
+    "handler_main.cc",
+    "handler_main.h",
+    "mac/crash_report_exception_handler.cc",
+    "mac/crash_report_exception_handler.h",
+    "mac/exception_handler_server.cc",
+    "mac/exception_handler_server.h",
+    "win/crash_report_exception_handler.cc",
+    "win/crash_report_exception_handler.h",
+  ]
+
+  include_dirs = [ ".." ]
+
+  deps = [
+    "../compat",
+    "../minidump",
+    "../snapshot",
+    "../tools:tool_support",
+    "//base",
+  ]
+
+  if (is_win) {
+    cflags = [ "/wd4201" ]
+  }
+}
+
+executable("crashpad_handler") {
+  sources = [
+    "main.cc",
+  ]
+
+  include_dirs = [ ".." ]
+
+  deps = [
+    ":handler_lib",
+    "../compat",
+    "//base",
+  ]
+}