Use base::StartWith() in more places when appropriate.

chrome/browser/shell_integration_linux.cc

Index: chrome/browser/shell_integration_linux.cc
diff --git a/chrome/browser/shell_integration_linux.cc b/chrome/browser/shell_integration_linux.cc
index 555b2d21010d462039d5cf75749a0b5820cdffd4..b10350070c9f307dad0a4ad62195b202926b0ec2 100644
--- a/chrome/browser/shell_integration_linux.cc
+++ b/chrome/browser/shell_integration_linux.cc
@@ -202,7 +202,9 @@ DefaultWebClientState GetIsDefaultWebClient(const std::string& protocol) {
   }
 
   // Allow any reply that starts with "yes".
-  return (reply.find("yes") == 0) ? IS_DEFAULT : NOT_DEFAULT;
+  return base::StartsWith(reply, "yes", base::CompareCase::SENSITIVE)
+             ? IS_DEFAULT
+             : NOT_DEFAULT;
 #endif
 }