Add about:flags for enabling gamepad.

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index f02eb50ebeae1356195e5255e36be3c95ebd72e1..ed83006b82694e1cb4deda11b53cb8f3bc906011 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -4884,6 +4884,12 @@ Keep your key file in a safe place. You will need it to create new versions of y
       <message name="IDS_FLAGS_ENABLE_PLATFORM_APPS_DESCRIPTION" desc="Description for the flag to enable platform apps.">
         Enable advanced application capabilities.
       </message>
+      <message name="IDS_FLAGS_ENABLE_GAMEPAD_NAME" desc="Title for the flag to enable gamepad support.">
+        Enable Gamepad
+      </message>
+      <message name="IDS_FLAGS_ENABLE_GAMEPAD_DESCRIPTION" desc="Description for the flag to enable gamepad support.">

[Nico, 2011/11/24 22:06:41]

I'd get rid of the the first sentence; that's already covered by the title.

+        Enables gamepad API support. This API allows web applications to access data from gamepad devices connected to the system.
+      </message>
 
       <!-- Crashes -->
       <message name="IDS_CRASHES_TITLE" desc="Title for the chrome://crashes page.">