Collect an initial set of stability activities

components/browser_watcher/postmortem_report_collector.h

Index: components/browser_watcher/postmortem_report_collector.h
diff --git a/components/browser_watcher/postmortem_report_collector.h b/components/browser_watcher/postmortem_report_collector.h
index dffdc6e3214cc3c4fc5b2bdadc3f59aa041acd0b..d776a50ccb2ac646e0c5cbd215c673a3672250d1 100644
--- a/components/browser_watcher/postmortem_report_collector.h
+++ b/components/browser_watcher/postmortem_report_collector.h
@@ -15,6 +15,7 @@
 #include <string>
 #include <vector>
 
+#include "base/debug/activity_tracker.h"
 #include "base/files/file.h"
 #include "base/files/file_path.h"
 #include "base/gtest_prod_util.h"
@@ -87,6 +88,8 @@ class PostmortemReportCollector {
   // TODO(manzagop): move this for reuse in live scenario.
   virtual CollectionStatus Collect(const base::FilePath& debug_state_file,
                                    std::unique_ptr<StabilityReport>* report);
+  void CollectThread(const base::debug::ActivitySnapshot& snapshot,
+                     ThreadState* thread_state);
 
   virtual bool WriteReportToMinidump(const StabilityReport& report,
                                      const crashpad::UUID& client_id,