Parse the script_badge manifest section.

chrome/common/extensions/extension_switch_utils.h

Index: chrome/common/extensions/extension_switch_utils.h
diff --git a/chrome/common/extensions/extension_switch_utils.h b/chrome/common/extensions/extension_switch_utils.h
index e2c53ca167eea5adcfe5373e900a85c79a198003..4965dc0111aafdd437eaf16aad0ce16e43502b6f 100644
--- a/chrome/common/extensions/extension_switch_utils.h
+++ b/chrome/common/extensions/extension_switch_utils.h
@@ -14,6 +14,20 @@ bool IsEasyOffStoreInstallEnabled();
 
 bool IsActionBoxEnabled();
 
+// TODO(jyasskin): Convert this to a generic switch system that wraps the whole
+// interaction with CommandLine::HasSwitch and doesn't require globals.
+enum EnabledState {
+  ENABLED,
+  DISABLED
+};
+
+// Using this makes all other access to IsActionBoxEnabled NOT thread-safe.
+class ScopedSetActionBoxForTest {
+ public:
+  explicit ScopedSetActionBoxForTest(EnabledState);
+  ~ScopedSetActionBoxForTest();
+};
+
 }  // switch_utils
 
 }  // extensions