Revert of Introduce InterfaceEndpointClient(IEC), InterfaceEndpointHandle and

mojo/public/js/validator.js

Index: mojo/public/js/validator.js
diff --git a/mojo/public/js/validator.js b/mojo/public/js/validator.js
index 283546d4f18803fc7fd75cb4c165ce4f2886c0d4..fee742d0c1b1c2761f99bd4494e587e5237965fd 100644
--- a/mojo/public/js/validator.js
+++ b/mojo/public/js/validator.js
@@ -28,49 +28,6 @@
   };
 
   var NULL_MOJO_POINTER = "NULL_MOJO_POINTER";
-  var gValidationErrorObserver = null;
-
-  function reportValidationError(error) {
-    if (gValidationErrorObserver) {
-      gValidationErrorObserver.setLastError(error);
-    }
-  }
-
-  var ValidationErrorObserverForTesting = (function() {
-    function Observer() {
-      this.lastError = validationError.NONE;
-      this.callback = null;
-    }
-
-    Observer.prototype.setLastError = function(error) {
-      this.lastError = error;
-      if (this.callback) {
-        this.callback(error);
-      }
-    };
-
-    Observer.prototype.reset = function(error) {
-      this.lastError = validationError.NONE;
-      this.callback = null;
-    };
-
-    return {
-      getInstance: function() {
-        if (!gValidationErrorObserver) {
-          gValidationErrorObserver = new Observer();
-        }
-        return gValidationErrorObserver;
-      }
-    };
-  })();
-
-  function isTestingMode() {
-    return Boolean(gValidationErrorObserver);
-  }
-
-  function clearTestingMode() {
-    gValidationErrorObserver = null;
-  }
 
   function isEnumClass(cls) {
     return cls instanceof codec.Enum;
@@ -223,7 +180,6 @@
     return fieldVersion <= structVersion;
   };
 
-  // TODO(wangjimmy): Add support for v2 messages.
   Validator.prototype.validateMessageHeader = function() {
 
     var err = this.validateStructHeader(0, codec.kMessageHeaderSize);
@@ -552,9 +508,5 @@
   var exports = {};
   exports.validationError = validationError;
   exports.Validator = Validator;
-  exports.ValidationErrorObserverForTesting = ValidationErrorObserverForTesting;
-  exports.reportValidationError = reportValidationError;
-  exports.isTestingMode = isTestingMode;
-  exports.clearTestingMode = clearTestingMode;
   return exports;
 });