Add fixing of MSI DisplayVersion to Chrome installs/updates.

chrome/installer/setup/install_worker_unittest.cc

Index: chrome/installer/setup/install_worker_unittest.cc
diff --git a/chrome/installer/setup/install_worker_unittest.cc b/chrome/installer/setup/install_worker_unittest.cc
index c288549f5de363a9f732721bf54b1da7a74edebd..0ee56907af6b9c42e94aba8ad611e9f87a13672d 100644
--- a/chrome/installer/setup/install_worker_unittest.cc
+++ b/chrome/installer/setup/install_worker_unittest.cc
@@ -672,6 +672,36 @@ TEST_F(InstallWorkerTest, AddUsageStatsWorkItems) {
                          &work_item_list);
 }
 
+TEST_F(InstallWorkerTest, ConvertGUIDToMSIUserDataFormatTest) {
+  base::string16 converted_empty_guid(
+      installer::ConvertGUIDToMSIUserDataFormat(L""));
+  EXPECT_TRUE(converted_empty_guid.empty());
+
+  base::string16 malformed_guid(
+      installer::ConvertGUIDToMSIUserDataFormat(L"Marmite!"));
+  EXPECT_TRUE(malformed_guid.empty());
+
+  base::string16 short_guid(
+      installer::ConvertGUIDToMSIUserDataFormat(
+          L"Marmite!-Marm-Mite-Marm-Mite"));
+  EXPECT_TRUE(short_guid.empty());
+
+  base::string16 long_guid(
+      installer::ConvertGUIDToMSIUserDataFormat(
+          L"Marmite!-Marm-Mite-Marm-MiteMarmiteMarmiteMarmite"));
+  EXPECT_TRUE(long_guid.empty());
+
+  base::string16 off_by_one_guid(
+      installer::ConvertGUIDToMSIUserDataFormat(
+          L"Marmite!!-Marm-Mite-Marm-MiteMarmite"));
+  EXPECT_TRUE(long_guid.empty());
+
+  base::string16 correct_guid(
+      installer::ConvertGUIDToMSIUserDataFormat(
+          L"BED0D2F3-7407-3B43-A48F-6C33BC3D5DAD"));
+  EXPECT_EQ(L"3F2D0DEB704734B34AF8C633CBD3D5DA", correct_guid);
+}
+
 // The Quick Enable tests only make sense for the Google Chrome build as it
 // interacts with registry values that are specific to Google Update.
 #if defined(GOOGLE_CHROME_BUILD)