Store the system profile in the breadcrumbs file.

chrome/browser/chrome_browser_field_trials_desktop.cc

 // Copyright 2013 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.
 
 #include "chrome/browser/chrome_browser_field_trials_desktop.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
 
 #include <map>
 #include <string>
 
 #include "base/command_line.h"
 #include "base/debug/activity_tracker.h"
 #include "base/feature_list.h"
 #include "base/files/file_util.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/field_trial_params.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/path_service.h"
 #include "base/time/time.h"
 #include "chrome/browser/prerender/prerender_field_trial.h"
 #include "chrome/common/chrome_features.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "components/browser_watcher/features.h"
 #include "components/browser_watcher/stability_paths.h"
+#include "components/metrics/persistent_system_profile.h"
 #include "components/variations/variations_associated_data.h"
 #include "content/public/common/content_switches.h"
 #include "media/media_features.h"
 
 #if defined(OS_WIN)
 #include "base/win/pe_image.h"
 #include "chrome/install_static/install_util.h"
 #include "components/browser_watcher/stability_data_names.h"
 #endif
 
@@ skipping 145 matching lines @@
     // having a minimal amount of content in the stability file, even if
     // the system crashes or loses power. Note: this does not flush the file
     // metadata nor does it wait for the changes to be flushed to disk before
     // returning. This is an expensive operation. Run as an experiment to
     // measure the effect on performance and collection.
     const bool should_flush = base::GetFieldTrialParamByFeatureAsBool(
         browser_watcher::kStabilityDebuggingFeature,
         browser_watcher::kInitFlushParam, false);
     if (should_flush)
       ::FlushViewOfFile(global_tracker->allocator()->data(), 0U);
+
+    // Store a copy of the system profile in this allocator. There will be some
+    // delay before this gets populated, perhaps as much as a minute. Because
+    // of this, there is no need to flush it here.
+    metrics::GlobalPersistentSystemProfile::GetInstance()
+        ->RegisterPersistentAllocator(global_tracker->allocator());
   }
 }
 #endif  // defined(OS_WIN)
 
 }  // namespace
 
 void SetupDesktopFieldTrials() {
   prerender::ConfigurePrerender();
   SetupStunProbeTrial();
 #if defined(OS_WIN)
   SetupStabilityDebugging();
   base::FeatureList::IsEnabled(features::kModuleDatabase);
 #endif  // defined(OS_WIN)
 }
 
 }  // namespace chrome