first-run: Pull IsBrowserAlreadyRunning() out of upgrade_util_win.h.

This concept is not specific to upgrade path and thus shouldn't belong there.
Move it to a new header file called browser_util_win.h as it's more appropriate.

BUG=79203
TEST=None

[email protected]

Review URL: http://codereview.chromium.org/6861001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@81691 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/chrome_browser.gypi b/chrome/chrome_browser.gypi
index 79771de2..a0bfb819 100644
--- a/chrome/chrome_browser.gypi
+++ b/chrome/chrome_browser.gypi
@@ -316,6 +316,8 @@
         'browser/browser_trial.h',
         'browser/browser_url_handler.cc',
         'browser/browser_url_handler.h',
+        'browser/browser_util_win.cc',
+        'browser/browser_util_win.h',
         'browser/browsing_data_appcache_helper.cc',
         'browser/browsing_data_appcache_helper.h',
         'browser/browsing_data_database_helper.cc',