Parse /etc/lsb-release only once on ChromeOS

chrome/app/chrome_main_delegate.cc

Index: chrome/app/chrome_main_delegate.cc
diff --git a/chrome/app/chrome_main_delegate.cc b/chrome/app/chrome_main_delegate.cc
index 08b9e43d26909c4c90d033731b942780a88787b8..4da7b70a54a7c0d489ebd076b48d91a59939dda9 100644
--- a/chrome/app/chrome_main_delegate.cc
+++ b/chrome/app/chrome_main_delegate.cc
@@ -76,6 +76,7 @@
 #endif
 
 #if defined(OS_CHROMEOS)
+#include "base/i18n/time_formatting.h"
 #include "base/sys_info.h"
 #include "chrome/browser/chromeos/boot_times_loader.h"
 #include "chromeos/chromeos_paths.h"
@@ -746,11 +747,16 @@ void ChromeMainDelegate::PreSandboxStartup() {
 #endif
 
 #if defined(OS_CHROMEOS)
-  // Read and cache ChromeOS version from file,
-  // to be used from inside the sandbox.
+  // Read and cache ChromeOS version, to be used from inside the sandbox.
   int32 major_version, minor_version, bugfix_version;
   base::SysInfo::OperatingSystemVersionNumbers(
       &major_version, &minor_version, &bugfix_version);
+  std::string lsb_source;
+  base::SysInfo::GetLsbReleaseValue("lsb-source", &lsb_source);
+  VLOG(1) << "lsb-release source: " << lsb_source;
+  VLOG(1) << "lsb-release time: "
+          << base::TimeFormatShortDateAndTime(
+              base::SysInfo::GetLsbReleaseTime());
 #endif
 }