Set user-visible machine names and devices types for synced sessions.

base/mac/mac_util_unittest.mm

Index: base/mac/mac_util_unittest.mm
diff --git a/base/mac/mac_util_unittest.mm b/base/mac/mac_util_unittest.mm
index dd860a66872930868b8dd12e856c57d50101696f..48b6fe87f42dd40660e27ebd165e5b6b368b610e 100644
--- a/base/mac/mac_util_unittest.mm
+++ b/base/mac/mac_util_unittest.mm
@@ -161,6 +161,13 @@ TEST_F(MacUtilTest, NSObjectRetainRelease) {
   EXPECT_EQ(1U, [array retainCount]);
 }
 
+// The test is somewhat silly, and just verifies that we return a hardware
+// model name.
+TEST_F(MacUtilTest, GetHardwareModelName) {
+  std::string hardware_model = GetHardwareModelName();
+  EXPECT_TRUE(!hardware_model.empty());
+}
+
 TEST_F(MacUtilTest, IsOSEllipsis) {
   int32 major, minor, bugfix;
   base::SysInfo::OperatingSystemVersionNumbers(&major, &minor, &bugfix);