Replace string::find(prefix) == 0 pattern with base::StartsWith().

chrome/browser/ui/browser_navigator_browsertest.cc

Index: chrome/browser/ui/browser_navigator_browsertest.cc
diff --git a/chrome/browser/ui/browser_navigator_browsertest.cc b/chrome/browser/ui/browser_navigator_browsertest.cc
index 4c8c1d98b578c3dee46e667bbfe633f54491a1fd..efae8f10f1bc73365fd7528efb12e56b488a7aa8 100644
--- a/chrome/browser/ui/browser_navigator_browsertest.cc
+++ b/chrome/browser/ui/browser_navigator_browsertest.cc
@@ -68,7 +68,7 @@ GURL ShortenUberURL(const GURL& url) {
   std::string url_string = url.spec();
   const std::string long_prefix = "chrome://chrome/";
   const std::string short_prefix = "chrome://";
-  if (url_string.find(long_prefix) != 0)
+  if (!base::StartsWith(url_string, long_prefix, base::CompareCase::SENSITIVE))
     return url;
   url_string.replace(0, long_prefix.length(), short_prefix);
   return GURL(url_string);