Introduce new chrome.easyUnlock APIs for getting the sign-in challenge and using it to sign-in the …

chrome/browser/extensions/api/easy_unlock_private/easy_unlock_private_api.h

Index: chrome/browser/extensions/api/easy_unlock_private/easy_unlock_private_api.h
diff --git a/chrome/browser/extensions/api/easy_unlock_private/easy_unlock_private_api.h b/chrome/browser/extensions/api/easy_unlock_private/easy_unlock_private_api.h
index f80f85bd3f5d6c2a085d51578ce88cf939c37600..53c8d421f75d8c2ee76b3aab2249dd37c1315c49 100644
--- a/chrome/browser/extensions/api/easy_unlock_private/easy_unlock_private_api.h
+++ b/chrome/browser/extensions/api/easy_unlock_private/easy_unlock_private_api.h
@@ -277,6 +277,38 @@ class EasyUnlockPrivateGetRemoteDevicesFunction : public SyncExtensionFunction {
   DISALLOW_COPY_AND_ASSIGN(EasyUnlockPrivateGetRemoteDevicesFunction);
 };
 
+class EasyUnlockPrivateGetSignInChallengeFunction :
+    public AsyncExtensionFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION("easyUnlockPrivate.getSignInChallenge",
+                             EASYUNLOCKPRIVATE_GETSIGNINCHALLENGE)
+  EasyUnlockPrivateGetSignInChallengeFunction();
+
+ private:
+  virtual ~EasyUnlockPrivateGetSignInChallengeFunction();
+
+  // AsyncExtensionFunction:
+  virtual bool RunAsync() OVERRIDE;
+
+  DISALLOW_COPY_AND_ASSIGN(EasyUnlockPrivateGetSignInChallengeFunction);
+};
+
+class EasyUnlockPrivateTrySignInSecretFunction :
+    public AsyncExtensionFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION("easyUnlockPrivate.trySignInSecret",
+                             EASYUNLOCKPRIVATE_TRYSIGNINSECRET)
+  EasyUnlockPrivateTrySignInSecretFunction();
+
+ private:
+  virtual ~EasyUnlockPrivateTrySignInSecretFunction();
+
+  // AsyncExtensionFunction:
+  virtual bool RunAsync() OVERRIDE;
+
+  DISALLOW_COPY_AND_ASSIGN(EasyUnlockPrivateTrySignInSecretFunction);
+};
+
 }  // namespace api
 }  // namespace extensions