Decouple stability instrumentation recording and collection

components/browser_watcher/stability_paths.h

 // Copyright 2017 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.
 
 #ifndef COMPONENTS_BROWSER_WATCHER_STABILITY_PATHS_H_
 #define COMPONENTS_BROWSER_WATCHER_STABILITY_PATHS_H_
 
+#include <set>
+#include <vector>
+
 #include "base/files/file_path.h"
 #include "base/process/process.h"
 #include "build/build_config.h"
 
 #if defined(OS_WIN)
 #include <winsock2.h>
 #endif  // defined(OS_WIN)
 
 namespace browser_watcher {
 
@@ skipping 10 matching lines @@
 
 // On success, returns true and |path| contains the path to the stability file.
 // On failure, returns false.
 bool GetStabilityFileForProcess(const base::Process& process,
                                 const base::FilePath& user_data_dir,
                                 base::FilePath* path);
 
 // Returns a pattern that matches file names returned by GetFileForProcess.
 base::FilePath::StringType GetStabilityFilePattern();
 
+// Returns files in |stability_dir| that match |stability_file_pattern|,
+// excluding those in |excluded_stability_files|.
+std::vector<base::FilePath> GetStabilityFiles(
+    const base::FilePath& stability_dir,
+    const base::FilePath::StringType& stability_file_pattern,
+    const std::set<base::FilePath>& excluded_stability_files);
+
 // Sets the current process's stability file's state to deleted (via the
 // GlobalActivityTracker) and opens the file for deletion. Metrics pertaining to
 // stability recording are logged.
 void MarkOwnStabilityFileDeleted(const base::FilePath& user_data_dir);
 
 // Sets another process's stability file's state to deleted, then opens it for
 // deletion. This function is meant for use by the crashpad handler; it logs
 // metrics labelled as in the context of crash collection.
 void MarkStabilityFileDeletedOnCrash(const base::FilePath& file_path);
 
 #endif  // defined(OS_WIN)
 
 }  // namespace browser_watcher
 
 #endif  // COMPONENTS_BROWSER_WATCHER_STABILITY_PATHS_H_