Create ChromeEarlGrey waitForWebViewContainingText.

ios/chrome/browser/web/stop_loading_egtest.mm

Index: ios/chrome/browser/web/stop_loading_egtest.mm
diff --git a/ios/chrome/browser/web/stop_loading_egtest.mm b/ios/chrome/browser/web/stop_loading_egtest.mm
index 2648d039f44cc787faba1a7fcdd7ec87282c2b8e..707da8d7f641296a7bff1e24165aae42a16582a8 100644
--- a/ios/chrome/browser/web/stop_loading_egtest.mm
+++ b/ios/chrome/browser/web/stop_loading_egtest.mm
@@ -9,6 +9,7 @@
 #include "base/time/time.h"
 #include "ios/chrome/browser/ui/ui_util.h"
 #include "ios/chrome/test/app/navigation_test_util.h"
+#import "ios/chrome/test/earl_grey/chrome_earl_grey.h"
 #import "ios/chrome/test/earl_grey/chrome_earl_grey_ui.h"
 #import "ios/chrome/test/earl_grey/chrome_matchers.h"
 #import "ios/chrome/test/earl_grey/chrome_test_case.h"
@@ -22,7 +23,6 @@
 #endif
 
 using chrome_test_util::ButtonWithAccessibilityLabelId;
-using chrome_test_util::WebViewContainingText;
 
 namespace {
 
@@ -106,8 +106,7 @@ class InfinitePendingResponseProvider : public HtmlResponseProvider {
   }
 
   // Wait until the page is half loaded.
-  [[EarlGrey selectElementWithMatcher:WebViewContainingText(kPageText)]
-      assertWithMatcher:grey_notNil()];
+  [ChromeEarlGrey waitForWebViewContainingText:kPageText];
 
   // On iPhone Stop/Reload button is a part of tools menu, so open it.
   if (!IsIPadIdiom()) {