Add stability_debugging_win_unittest.cc to build config

This fixes an oversight from https://codereview.chromium.org/2344343002/

BUG=620813

Review-Url: https://codereview.chromium.org/2852693003
Cr-Commit-Position: refs/heads/master@{#468987}

components/browser_watcher/BUILD.gn

@@ -95,6 +95,7 @@ if (is_win) {
       "exit_code_watcher_win_unittest.cc",
       "postmortem_minidump_writer_win_unittest.cc",
       "postmortem_report_collector_unittest.cc",
+      "stability_debugging_win_unittest.cc",
       "system_session_analyzer_win_unittest.cc",
       "watcher_client_win_unittest.cc",
       "watcher_metrics_provider_win_unittest.cc",
@@ -105,6 +106,7 @@ if (is_win) {
       ":browser_watcher",
       ":browser_watcher_client",
       ":postmortem_report_collector",
+      ":stability",
       ":stability_data",
       ":stability_report_proto",
       "//base",

components/browser_watcher/stability_debugging_win_unittest.cc

@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "components/browser_watcher/stability_debugging_win.h"
+#include "components/browser_watcher/stability_debugging.h"
 
 #include "base/files/file_enumerator.h"
 #include "base/files/file_path.h"
@@ -36,8 +36,9 @@ TEST_F(StabilityDebuggingWinMultiProcTest, GetStabilityFileForProcessTest) {
   EXPECT_EQ(stability_path, stability_path_two);
 
   // Ensure a different process has a different stability path.
+  base::SpawnChildResult spawn_result = SpawnChild("DummyProcess");
   base::FilePath stability_path_other;
-  ASSERT_TRUE(GetStabilityFileForProcess(SpawnChild("DummyProcess"), empty_path,
+  ASSERT_TRUE(GetStabilityFileForProcess(spawn_result.process, empty_path,
                                          &stability_path_other));
   EXPECT_NE(stability_path, stability_path_other);
 }
@@ -51,7 +52,7 @@ TEST(StabilityDebuggingWinTest,
 
   base::ScopedTempDir temp_dir;
   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
-  base::FilePath user_data_dir = temp_dir.path();
+  base::FilePath user_data_dir = temp_dir.GetPath();
 
   // Create the stability directory.
   base::FilePath stability_dir = GetStabilityDir(user_data_dir);