Revert "Stop using Function methods which are tacked onto Function.prototype"

This reverts commit ad44bae.
Because Function.prototype.bind is a native function in all
environments supported by this file.
http://kangax.github.io/compat-table/es5/#Function.prototype.bind
And also I didn't apply the change right and broke the build...

Author: sevaseva

javascript/webdriver/promise.js

@@ -410,10 +410,8 @@ promise.Promise.prototype.resolve_ = function(newState, newValue) {
     // 2.3.2
     newValue = /** @type {!promise.Thenable} */(newValue);
     newValue.then(
-        goog.bind(
-            this.unblockAndResolve_, this, promise.Promise.State_.FULFILLED),
-        goog.bind(
-            this.unblockAndResolve_, this, promise.Promise.State_.REJECTED));
+        this.unblockAndResolve_.bind(this, PromiseState.FULFILLED),
+        this.unblockAndResolve_.bind(this, PromiseState.REJECTED));
     return;
 
   } else if (goog.isObject(newValue)) {