Disable/enable echo for enterprise device.

chrome/browser/chromeos/extensions/echo_private_api.h

Index: chrome/browser/chromeos/extensions/echo_private_api.h
diff --git a/chrome/browser/chromeos/extensions/echo_private_api.h b/chrome/browser/chromeos/extensions/echo_private_api.h
index 8e813992e676cdbacabe45f7d9512701287e19ac..e352dab76a1589eb42cc2f44784f8b4f0d12c4fd 100644
--- a/chrome/browser/chromeos/extensions/echo_private_api.h
+++ b/chrome/browser/chromeos/extensions/echo_private_api.h
@@ -8,7 +8,7 @@
 #include "base/compiler_specific.h"
 #include "chrome/browser/extensions/extension_function.h"
 
-class GetRegistrationCodeFunction : public SyncExtensionFunction {
+class GetRegistrationCodeFunction : public AsyncExtensionFunction {
  public:
   GetRegistrationCodeFunction();
 
@@ -17,6 +17,7 @@ class GetRegistrationCodeFunction : public SyncExtensionFunction {
   virtual bool RunImpl() OVERRIDE;
 
  private:
+  void GetRegistrationCode(const std::string& type);
   DECLARE_EXTENSION_FUNCTION("echoPrivate.getRegistrationCode",
                              ECHOPRIVATE_GETREGISTRATIONCODE)
 };
@@ -34,4 +35,18 @@ class GetOobeTimestampFunction : public AsyncExtensionFunction {
   DECLARE_EXTENSION_FUNCTION("echoPrivate.getOobeTimestamp",
                              ECHOPRIVATE_GETOOBETIMESTAMP)
 };
+
+class AllowRedeemOffersFunction : public AsyncExtensionFunction {
+ public:
+  AllowRedeemOffersFunction();
+
+ protected:
+  virtual ~AllowRedeemOffersFunction();
+  virtual bool RunImpl() OVERRIDE;
+
+ private:
+  void AllowRedeemOffersCallback();
+  DECLARE_EXTENSION_FUNCTION("echoPrivate.allowRedeemOffers",
+                             ECHOPRIVATE_ALLOWREDEEMOFFERS)
+};
 #endif  // CHROME_BROWSER_CHROMEOS_EXTENSIONS_ECHO_PRIVATE_API_H_