Made launcher hidden when kicking off chrome in app mode.

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index d99f05cac305cb7717e9a38cddfac77b2be52d63..a82b5c0a2283f0f23b02473b1859b7f07699565f 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -689,7 +689,11 @@ const char kFileDescriptorLimit[]           = "file-descriptor-limit";
 
 // Displays the First Run experience when the browser is started, regardless of
 // whether or not it's actually the First Run (this overrides kNoFirstRun).
-const char kForceFirstRun[]                      = "force-first-run";
+const char kForceFirstRun[]                 = "force-first-run";
+
+// Forces application mode. This hides certain system UI elements and forces
+// the app to be installed if it hasn't been already.
+const char kForceAppMode[]                  = "force-app-mode";
 
 // Enables using GAIA information to populate profile name and icon.
 const char kGaiaProfileInfo[]               = "gaia-profile-info";