Fix Chromoting client to choose correct OS-specific key filter.

remoting/webapp/client_screen.js

Index: remoting/webapp/client_screen.js
diff --git a/remoting/webapp/client_screen.js b/remoting/webapp/client_screen.js
index 58a2a057483f69488408bff13a5486752e0a15b0..cb54aa358610d94f66dc65ff869488d962ad183a 100644
--- a/remoting/webapp/client_screen.js
+++ b/remoting/webapp/client_screen.js
@@ -336,13 +336,13 @@ remoting.onConnected = function(clientSession) {
     // TODO(jamiewalch): Use a descriptive name for the local computer, for
     // example, its Chrome Sync name.
     var clientName = '';
-    if (navigator.platform.indexOf('Mac') != -1) {
+    if (remoting.platformIsMac()) {
       clientName = 'Mac';
-    } else if (navigator.platform.indexOf('Win32') != -1) {
+    } else if (remoting.platformIsWindows()) {
       clientName = 'Windows';
-    } else if (navigator.userAgent.match(/\bCrOS\b/)) {
+    } else if (remoting.platformIsChromeOS()) {
       clientName = 'ChromeOS';
-    } else if (navigator.platform.indexOf('Linux') != -1) {
+    } else if (remoting.platformIsLinux()) {
       clientName = 'Linux';
     } else {
       console.log('Unrecognized client platform. Using navigator.platform.');