Add command line flag to force all extensions to have a browser action.

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 fbb5e717d9ee016fa604beeda943e7272da799e3..e1e9b6d15dacacbc6d296bec5a200891ae001149 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -470,6 +470,9 @@ const char kEnableAutologin[]               = "enable-autologin";
 // Enables the benchmarking extensions.
 const char kEnableBenchmarking[]            = "enable-benchmarking";
 
+// Enables making all extensions have a browser action.
+const char kEnableBrowserActionsForAll[]    = "enable-browser-actions-for-all";
+
 // Enables the bundled PPAPI version of Flash.
 const char kEnableBundledPpapiFlash[]       = "enable-bundled-ppapi-flash";