Added --custom-launcher-page. Adds a page to the experimental launcher.

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 674e2c52e807ebaa00d0e8b5092baec9b8a6f4c0..b90f2203fd35e3ff3ddd139e394044585f8cd2b2 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -189,6 +189,10 @@ const char kCrashOnHangThreads[]            = "crash-on-hang-threads";
 const char kCreateBrowserOnStartupForTests[] =
     "create-browser-on-startup-for-tests";
 
+// Specifies the chrome-extension:// URL for the contents of an additional page
+// added to the experimental app launcher.
+const char kCustomLauncherPage[]            = "custom-launcher-page";
+
 // Enables a frame context menu item that toggles the frame in and out of glass
 // mode (Windows Vista and up only).
 const char kDebugEnableFrameToggle[]        = "debug-enable-frame-toggle";