Hack to restrict runtime API to dev channel rather than experimental.

chrome/common/extensions_api_resources.grd

Index: chrome/common/extensions_api_resources.grd
diff --git a/chrome/common/extensions_api_resources.grd b/chrome/common/extensions_api_resources.grd
index 3d9d812d2924e3a35dc0ecd4d26ba3e48db2dfbc..ba89c8722b52a8c0d9d3a90a4cb9e51512752e36 100644
--- a/chrome/common/extensions_api_resources.grd
+++ b/chrome/common/extensions_api_resources.grd
@@ -38,7 +38,6 @@
       <include name="IDR_EXTENSION_API_JSON_EXPERIMENTAL_PROCESSES" file="extensions\api\experimental_processes.json" type="BINDATA" />
       <include name="IDR_EXTENSION_API_JSON_EXPERIMENTAL_RECORD" file="extensions\api\experimental_record.json" type="BINDATA" />
       <include name="IDR_EXTENSION_API_JSON_EXPERIMENTAL_RLZ" file="extensions\api\experimental_rlz.json" type="BINDATA" />
-      <include name="IDR_EXTENSION_API_JSON_EXPERIMENTAL_RUNTIME" file="extensions\api\experimental_runtime.json" type="BINDATA" />
       <include name="IDR_EXTENSION_API_JSON_EXPERIMENTAL_SPEECHINPUT" file="extensions\api\experimental_speech_input.json" type="BINDATA" />
       <include name="IDR_EXTENSION_API_JSON_EXTENSION" file="extensions\api\extension.json" type="BINDATA" />
       <include name="IDR_EXTENSION_API_JSON_FILEBROWSERHANDLER" file="extensions\api\file_browser_handler.json" type="BINDATA" />
@@ -59,6 +58,7 @@
       <include name="IDR_EXTENSION_API_JSON_PERMISSIONS" file="extensions\api\permissions.json" type="BINDATA" />
       <include name="IDR_EXTENSION_API_JSON_PRIVACY" file="extensions\api\privacy.json" type="BINDATA" />
       <include name="IDR_EXTENSION_API_JSON_PROXY" file="extensions\api\proxy.json" type="BINDATA" />
+      <include name="IDR_EXTENSION_API_JSON_RUNTIME" file="extensions\api\runtime.json" type="BINDATA" />
       <include name="IDR_EXTENSION_API_JSON_STORAGE" file="extensions\api\storage.json" type="BINDATA" />
       <include name="IDR_EXTENSION_API_JSON_SYSTEMPRIVATE" file="extensions\api\system_private.json" type="BINDATA" />
       <include name="IDR_EXTENSION_API_JSON_TABS" file="extensions\api\tabs.json" type="BINDATA" />