Remove matcher to wait for static HTML view.

ios/chrome/test/earl_grey/chrome_earl_grey.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef IOS_CHROME_TEST_EARL_GREY_CHROME_EARL_GREY_H_
 #define IOS_CHROME_TEST_EARL_GREY_CHROME_EARL_GREY_H_
 
 #import <EarlGrey/EarlGrey.h>
 
 #include "url/gurl.h"
@@ skipping 36 matching lines @@
 // ui::PAGE_TRANSITION_TYPED, and waits for the page to complete loading, or
 // a timeout.
 + (void)loadURL:(GURL)URL;
 
 // Waits for the page to finish loading or a timeout.
 + (void)waitForPageToFinishLoading;
 
 // Taps html element with |elementID| in the current web view.
 + (void)tapWebViewElementWithID:(NSString*)elementID;
 
+// Waits for a static html view containing |text|. If the condition is not met
+// before a timeout, there is a GREYAssert.
++ (void)waitForStaticHTMLViewContainingText:(NSString*)text;
+
+// Waits for there to be no static html view, or a static html view that does
+// not contain |text|. If the condition is not met before a timeout, there is a
+// GREYAssert.
++ (void)waitForStaticHTMLViewNotContainingText:(NSString*)text;
+
+// Waits for a Chrome error page. If it is not found, a GREYAssert is induced.
++ (void)waitForErrorPage;
 @end
 
 #endif  // IOS_CHROME_TEST_EARL_GREY_CHROME_EARL_GREY_H_