Support global keyboard commands on Chrome OS.

extensions/common/switches.cc

Index: extensions/common/switches.cc
diff --git a/extensions/common/switches.cc b/extensions/common/switches.cc
index c416ac9bb9139ac2609b9f962fdf4958dc0e5b80..a4ea9b253267e35603c36d1a21ebb53d92d23d3f 100644
--- a/extensions/common/switches.cc
+++ b/extensions/common/switches.cc
@@ -56,9 +56,6 @@ const char kExtensionsOnChromeURLs[] = "extensions-on-chrome-urls";
 // Whether to force developer mode extensions highlighting.
 const char kForceDevModeHighlighting[] = "force-dev-mode-highlighting";
 
-// Enables setting global commands through the Extensions Commands API.
-const char kGlobalCommands[] = "global-commands";
-
 // Notify the user and require consent for extensions running scripts.
 // Appending --scripts-require-action=1 has the same effect as
 // --enable-scripts-require-action (see below).