Update comment describing disable-fullscreen switch

Review URL: https://chromiumcodereview.appspot.com/11931022

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@177242 0039d316-1c4b-4281-b951-d872f2087c98

content/public/common/content_switches.cc

@@ -287,7 +287,7 @@ const char kEnableFastback[]                = "enable-fastback";
 // or to a specified width and height using --enable-fixed-layout=w,h
 const char kEnableFixedLayout[]             = "enable-fixed-layout";
 
-// Enable the JavaScript Full Screen API.
+// Disable the JavaScript Full Screen API.
 const char kDisableFullScreen[]             = "disable-fullscreen";
 
 // Enable Text Service Framework(TSF) for text inputting instead of IMM32. This