Make EarlGrey matchers compliant with Chromium style.

ios/chrome/browser/web/forms_egtest.mm

 // 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.
 
 #import <XCTest/XCTest.h>
 
 #include "base/mac/scoped_nsobject.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/sys_string_conversions.h"
 #include "components/strings/grit/components_strings.h"
@@ skipping 75 matching lines @@
   std::unique_ptr<web::DataResponseProvider> provider(
       new HtmlResponseProvider(responses));
   web::test::SetUpHttpServer(std::move(provider));
 }
 
 // Submits the html form and verifies the destination url.
 - (void)submitForm {
   chrome_test_util::TapWebViewElementWithId(kSubmitButton);
 
   GURL url = web::test::HttpServer::MakeUrl(kPrintFormDataUrl);
-  id<GREYMatcher> URLMatcher = chrome_test_util::omniboxText(url.GetContent());
+  id<GREYMatcher> URLMatcher = chrome_test_util::OmniboxText(url.GetContent());
   [[EarlGrey selectElementWithMatcher:URLMatcher]
       assertWithMatcher:grey_notNil()];
 }
 
 // Waits for the |expectedResponse| within the web view.
 - (void)waitForExpectedResponse:(std::string)expectedResponse {
   [[GREYCondition
       conditionWithName:@"Waiting for webview to display resulting text."
                   block:^BOOL {
                     id<GREYMatcher> webViewMatcher =
-                        chrome_test_util::webViewContainingText(
+                        chrome_test_util::WebViewContainingText(
                             expectedResponse);
                     NSError* error = nil;
                     [[EarlGrey selectElementWithMatcher:webViewMatcher]
                         assertWithMatcher:grey_notNil()
                                     error:&error];
                     return error == nil;
                   }] waitWithTimeout:5];
 }
 
 // Waits for view with Tab History accessibility ID.
@@ skipping 24 matching lines @@
 - (void)goBack {
   base::scoped_nsobject<GenericChromeCommand> backCommand(
       [[GenericChromeCommand alloc] initWithTag:IDC_BACK]);
   chrome_test_util::RunCommandWithActiveViewController(backCommand);
 
   [ChromeEarlGrey waitForPageToFinishLoading];
 }
 
 // Open back navigation history.
 - (void)openBackHistory {
-  id<GREYMatcher> back =
-      chrome_test_util::buttonWithAccessibilityLabelId(IDS_ACCNAME_BACK);
-  [[EarlGrey selectElementWithMatcher:back] performAction:grey_longPress()];
+  [[EarlGrey selectElementWithMatcher:chrome_test_util::BackButton()]
+      performAction:grey_longPress()];
 }
 
 // Navigates forward to a previous webpage.
 // TODO(crbug.com/638674): Evaluate if this can move to shared code
 - (void)goForward {
   base::scoped_nsobject<GenericChromeCommand> forwardCommand(
       [[GenericChromeCommand alloc] initWithTag:IDC_FORWARD]);
   chrome_test_util::RunCommandWithActiveViewController(forwardCommand);
 
   [ChromeEarlGrey waitForPageToFinishLoading];
 }
 
 // Accepts the warning that the form POST data will be resent.
 - (void)confirmResendWarning {
   id<GREYMatcher> resendWarning =
-      chrome_test_util::buttonWithAccessibilityLabelId(
+      chrome_test_util::ButtonWithAccessibilityLabelId(
           IDS_HTTP_POST_WARNING_RESEND);
   [[EarlGrey selectElementWithMatcher:resendWarning]
       performAction:grey_longPress()];
 }
 
 // Tests whether the request data is resent correctly.
 - (void)testFormsResendPostData {
   [ChromeEarlGrey loadURL:web::test::HttpServer::MakeUrl(kFormUrl)];
 
   [self submitForm];
@@ skipping 71 matching lines @@
         initWithMatchesBlock:^BOOL(UIView* view) {
           return [NSStringFromClass([view class]) hasPrefix:@"UIDimmingView"];
         }
         descriptionBlock:^(id<GREYDescription> description) {
           [description appendText:@"class prefixed with UIDimmingView"];
         }]);
     [[EarlGrey selectElementWithMatcher:matcher]
         performAction:grey_tapAtPoint(CGPointMake(50.0f, 50.0f))];
   } else {
     // On handset, dismiss via the cancel button.
-    [[EarlGrey selectElementWithMatcher:chrome_test_util::cancelButton()]
+    [[EarlGrey selectElementWithMatcher:chrome_test_util::CancelButton()]
         performAction:grey_tap()];
   }
   // Check that the POST is changed to a GET
   [self waitForExpectedResponse:"GET"];
 }
 
 // Tests that a POST followed by a redirect does not show the popup.
 - (void)testFormsDontResendPostDataAfterRedirect {
   [ChromeEarlGrey loadURL:web::test::HttpServer::MakeUrl(kRedirectFormUrl)];
   // Submit the form, which redirects before printing the data.
   [self submitForm];
   // Check that the redirect changes the POST to a GET.
   [self waitForExpectedResponse:"GET"];
   [self reloadPage];
 
   // Check that the popup did not show
   id<GREYMatcher> resendWarning =
-      chrome_test_util::buttonWithAccessibilityLabelId(
+      chrome_test_util::ButtonWithAccessibilityLabelId(
           IDS_HTTP_POST_WARNING_RESEND);
   [[EarlGrey selectElementWithMatcher:resendWarning]
       assertWithMatcher:grey_nil()];
 
   [self waitForExpectedResponse:"GET"];
 }
 
 @end