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

chrome/browser/extensions/extension_service.cc

Index: chrome/browser/extensions/extension_service.cc
diff --git a/chrome/browser/extensions/extension_service.cc b/chrome/browser/extensions/extension_service.cc
index b4580a8f776ea13cc1d388bbc3fa0224bf602843..8e5e11ba7b14c5f5d4d506a49ade736d070b2032 100644
--- a/chrome/browser/extensions/extension_service.cc
+++ b/chrome/browser/extensions/extension_service.cc
@@ -86,6 +86,7 @@
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
+#include "chrome/common/chrome_version_info.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_error_utils.h"
 #include "chrome/common/extensions/extension_file_util.h"
@@ -2440,6 +2441,10 @@ void ExtensionService::Observe(int type,
       if (!profile_->IsSameProfile(host_profile->GetOriginalProfile()))
           break;
 
+      // Extensions need to know the channel for API restrictions.
+      process->Send(new ExtensionMsg_SetChannel(
+          chrome::VersionInfo::GetChannel()));

[Yoyo Zhou, 2012/05/16 00:04:06]

Is there some reason we can't just call this in the constructor in
extension_dispatcher? After all, version_info is in chrome/common.

[Matt Perry, 2012/05/16 00:19:54]

Yeah, you can't call it from the renderer because it touches the filesystem:
http://code.google.com/p/chromium/issues/detail?id=126535

[Yoyo Zhou, 2012/05/16 00:23:40]

Bummer.

+
       // Valid extension function names, used to setup bindings in renderer.
       std::vector<std::string> function_names;
       ExtensionFunctionDispatcher::GetAllFunctionNames(&function_names);