Clean up a few more unused globals.

chrome/browser/sync/glue/chrome_report_unrecoverable_error.cc

Index: chrome/browser/sync/glue/chrome_report_unrecoverable_error.cc
diff --git a/chrome/browser/sync/glue/chrome_report_unrecoverable_error.cc b/chrome/browser/sync/glue/chrome_report_unrecoverable_error.cc
index 66fccc05b8dbcda44d38aeeff5fb666a31ecfcb8..2fe9dd4a358e8304ae2e542c45d8a3206a314708 100644
--- a/chrome/browser/sync/glue/chrome_report_unrecoverable_error.cc
+++ b/chrome/browser/sync/glue/chrome_report_unrecoverable_error.cc
@@ -15,10 +15,11 @@
 
 namespace browser_sync {
 
-static const double kErrorUploadRatio = 0.15;
 void ChromeReportUnrecoverableError() {
   // TODO(lipalani): Add this for other platforms as well.
 #if defined(OS_WIN)
+  const double kErrorUploadRatio = 0.15;
+
   // We only want to upload |kErrorUploadRatio| ratio of errors.
   if (kErrorUploadRatio <= 0.0)
     return; // We are not allowed to upload errors.