Use Chrome to transport Chrome OS metrics.

Chrome periodically reads the content of a well-know file, 
and parses it into name-value pairs, each representing a 
Chrome OS metrics event. The events are then logged using 
the normal UMA mechanism. The file is then truncated to 
zero size. Chrome uses flock() to synchronize accesses 
to the file. 
BUG=none 
TEST=compiled and run Linux and Chrome OS versions. 
Verified that uploaded Chrome OS events appear in about:histograms. 
Also external_metrics_unittest.cc tests the collection of metrics 
messages from the well-known file.

patch written by semenzato_google.com
original code review: http://codereview.chromium.org/378013
(plus http://codereview.chromium.org/346041)


Review URL: http://codereview.chromium.org/394010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@31952 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 0 insertions, 31 deletions

diff --git a/chrome/browser/metrics/system_metrics_logger_impl.h b/chrome/browser/metrics/system_metrics_logger_impl.h
deleted file mode 100644
index 8bcfc5b..0000000
--- a/chrome/browser/metrics/system_metrics_logger_impl.h
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2009 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 CHROME_BROWSER_METRICS_SYSTEM_METRICS_LOGGER_IMPL_H_
-#define CHROME_BROWSER_METRICS_SYSTEM_METRICS_LOGGER_IMPL_H_
-
-#include "base/basictypes.h"
-#include "chrome/browser/metrics/system_metrics_logger.h"
-
-class Profile;
-
-// Wraps calls to UserMetrics::RecordAction() and the appropriate
-// version of the UMA_HISTOGRAM_*_TIMES macros, based on the metric
-// being logged
-
-class SystemMetricsLoggerImpl : public SystemMetricsLogger {
- public:
-  SystemMetricsLoggerImpl();
-  ~SystemMetricsLoggerImpl();
-  void RecordOverviewKeystroke(Profile *profile);
-  void RecordOverviewExitMouse(Profile *profile);
-  void RecordOverviewExitKeystroke(Profile *profile);
-  void RecordWindowCycleKeystroke(Profile *profile);
-  void RecordBootTime(int64 time);
-  void RecordUpTime(int64 time);
- private:
-  DISALLOW_COPY_AND_ASSIGN(SystemMetricsLoggerImpl);
-};
-
-#endif  // CHROME_BROWSER_METRICS_SYSTEM_METRICS_LOGGER_IMPL_H_