Add functionality to the GCAPI to detect when Chrome was last run.

chrome/installer/gcapi/gcapi_test.cc

-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
+#include <stdio.h>
+
 #include "chrome/installer/gcapi/gcapi.h"
-
-#include <stdio.h>
+#include "testing/gtest/include/gtest/gtest.h"
 
 void call_statically() {
   DWORD reason = 0;
   BOOL result_flag_on = FALSE;
   BOOL result_flag_off = FALSE;
 
   // running this twice verifies that the first call does not set
   // a flag that would make the second fail.  Thus, the results
   // of the two calls should be the same (no state should have changed)
   result_flag_off = GoogleChromeCompatibilityCheck(FALSE, &reason);
@@ skipping 29 matching lines @@
 
     printf("Dynamic call returned result as %d and reason as %d.\n",
            result_flag_on, reason);
   } else {
     printf("Couldn't find GoogleChromeCompatibilityCheck() in gcapi_dll.\n");
   }
   FreeLibrary(module);
 }
 
 int main(int argc, char* argv[]) {
+  testing::InitGoogleTest(&argc, argv);
+  RUN_ALL_TESTS();
+
   call_dynamically();
   call_statically();
   printf("LaunchChrome returned %d.\n", LaunchGoogleChrome());
 }