Use machine-info stub with serial number for CHROMEOS=1 builds.

The current practice is reading the serial number from
/tmp/machine-info if it exists and generating a random one
otherwise.  This makes re-enrollment testing (which requires a
stable serial number) somewhat cumbersome.

This CL creates a machine-info stub in the profile directory so
that re-enrollment can be tested without the need of manually
creating a stub file and without interference between multiple
profiles on the same machine.

BUG=none

Review URL: https://codereview.chromium.org/790673003

Cr-Commit-Position: refs/heads/master@{#308852}

1 files changed, 11 insertions, 0 deletions

diff --git a/chromeos/chromeos_paths.cc b/chromeos/chromeos_paths.cc
index 659c240..07b7f9f 100644
--- a/chromeos/chromeos_paths.cc
+++ b/chromeos/chromeos_paths.cc
@@ -29,6 +29,9 @@ const base::FilePath::CharType kOwnerKeyFileName[] =
 const base::FilePath::CharType kInstallAttributesFileName[] =
     FILE_PATH_LITERAL("/var/run/lockbox/install_attributes.pb");
 
+const base::FilePath::CharType kMachineHardwareInfoFileName[] =
+    FILE_PATH_LITERAL("/tmp/machine-info");
+
 const base::FilePath::CharType kUptimeFileName[] =
     FILE_PATH_LITERAL("/proc/uptime");
 
@@ -58,6 +61,9 @@ bool PathProvider(int key, base::FilePath* result) {
     case FILE_INSTALL_ATTRIBUTES:
       *result = base::FilePath(kInstallAttributesFileName);
       break;
+    case FILE_MACHINE_INFO:
+      *result = base::FilePath(kMachineHardwareInfoFileName);
+      break;
     case FILE_UPTIME:
       *result = base::FilePath(kUptimeFileName);
       break;
@@ -105,6 +111,11 @@ void RegisterStubPathOverrides(const base::FilePath& stubs_dir) {
       parent.AppendASCII("stub_install_attributes.pb"),
       is_absolute,
       create);
+  PathService::OverrideAndCreateIfNeeded(
+      FILE_MACHINE_INFO,
+      parent.AppendASCII("stub_machine-info"),
+      is_absolute,
+      create);
   PathService::Override(
       DIR_DEVICE_LOCAL_ACCOUNT_EXTENSIONS,
       parent.AppendASCII("stub_device_local_account_extensions"));