Create ChromeEarlGrey waitForWebViewContainingText.

ios/chrome/browser/ui/fullscreen_egtest.mm

Index: ios/chrome/browser/ui/fullscreen_egtest.mm
diff --git a/ios/chrome/browser/ui/fullscreen_egtest.mm b/ios/chrome/browser/ui/fullscreen_egtest.mm
index b61d9810b9d4ce8c395e931d87be8d1da4aacda0..adc1fc42e4704bc8aa4e25624b4cdaaa9bda69a2 100644
--- a/ios/chrome/browser/ui/fullscreen_egtest.mm
+++ b/ios/chrome/browser/ui/fullscreen_egtest.mm
@@ -77,14 +77,6 @@ void AssertURLIs(const GURL& expectedURL) {
   GREYAssert(testing::WaitUntilConditionOrTimeout(1.0, condition), description);
 }
 
-// Asserts that the current web view containers contains |text|.
-void AssertStringIsPresentOnPage(const std::string& text) {
-  id<GREYMatcher> response_matcher =
-      chrome_test_util::WebViewContainingText(text);
-  [[EarlGrey selectElementWithMatcher:response_matcher]
-      assertWithMatcher:grey_notNil()];
-}
-
 }  // namespace
 
 #pragma mark - Tests
@@ -170,8 +162,7 @@ void AssertStringIsPresentOnPage(const std::string& text) {
 - (void)testChromeToChromeURLKeepsHeaderOnScreen {
   const GURL kChromeAboutURL("chrome://chrome-urls");
   [ChromeEarlGrey loadURL:kChromeAboutURL];
-
-  AssertStringIsPresentOnPage("chrome://version");
+  [ChromeEarlGrey waitForWebViewContainingText:"chrome://version"];
 
   // Hide the toolbar. The page is not long enough to dismiss the toolbar using
   // the UI so we have to zoom in.
@@ -250,7 +241,7 @@ void AssertStringIsPresentOnPage(const std::string& text) {
   web::test::SetUpSimpleHttpServer(responses);
 
   [ChromeEarlGrey loadURL:URL];
-  AssertStringIsPresentOnPage("Tall page");
+  [ChromeEarlGrey waitForWebViewContainingText:"Tall page"];
 
   // Hide the toolbar.
   HideToolbarUsingUI();
@@ -290,7 +281,7 @@ void AssertStringIsPresentOnPage(const std::string& text) {
   chrome_test_util::SetContentSettingsBlockPopups(CONTENT_SETTING_ALLOW);
 
   [ChromeEarlGrey loadURL:URL];
-  AssertStringIsPresentOnPage("link1");
+  [ChromeEarlGrey waitForWebViewContainingText:"link1"];
   chrome_test_util::AssertMainTabCount(1);
 
   // Hide the toolbar.
@@ -301,7 +292,7 @@ void AssertStringIsPresentOnPage(const std::string& text) {
   chrome_test_util::TapWebViewElementWithId("link1");
 
   // Check that a new Tab was created.
-  AssertStringIsPresentOnPage("link2");
+  [ChromeEarlGrey waitForWebViewContainingText:"link2"];
   chrome_test_util::AssertMainTabCount(2);
 
   AssertURLIs(destinationURL);
@@ -312,7 +303,7 @@ void AssertStringIsPresentOnPage(const std::string& text) {
 
   // Close the tab.
   chrome_test_util::TapWebViewElementWithId("link2");
-  AssertStringIsPresentOnPage("link1");
+  [ChromeEarlGrey waitForWebViewContainingText:"link1"];
 
   // Make sure the toolbar is on the screen.
   chrome_test_util::AssertMainTabCount(1);
@@ -343,14 +334,14 @@ void AssertStringIsPresentOnPage(const std::string& text) {
 
   [ChromeEarlGrey loadURL:originURL];
 
-  AssertStringIsPresentOnPage("link1");
+  [ChromeEarlGrey waitForWebViewContainingText:"link1"];
   // Dismiss the toolbar.
   HideToolbarUsingUI();
   [ChromeEarlGreyUI waitForToolbarVisible:NO];
 
   // Navigate to the other page.
   chrome_test_util::TapWebViewElementWithId("link1");
-  AssertStringIsPresentOnPage("link2");
+  [ChromeEarlGrey waitForWebViewContainingText:"link2"];
 
   // Make sure toolbar is shown since a new load has started.
   [ChromeEarlGreyUI waitForToolbarVisible:YES];
@@ -380,7 +371,7 @@ void AssertStringIsPresentOnPage(const std::string& text) {
   web::test::SetUpSimpleHttpServer(responses);
 
   [ChromeEarlGrey loadURL:URL];
-  AssertStringIsPresentOnPage("link");
+  [ChromeEarlGrey waitForWebViewContainingText:"link"];
 
   // Dismiss the toolbar.
   HideToolbarUsingUI();