Make EarlGrey matchers compliant with Chromium style.

ios/chrome/browser/autofill/form_input_egtest.mm

Index: ios/chrome/browser/autofill/form_input_egtest.mm
diff --git a/ios/chrome/browser/autofill/form_input_egtest.mm b/ios/chrome/browser/autofill/form_input_egtest.mm
index 259e03cb94260a43ec280001b6b1b21ae13b4185..ea44cb08d0727cc627b0c6ae75619402a3a9bc13 100644
--- a/ios/chrome/browser/autofill/form_input_egtest.mm
+++ b/ios/chrome/browser/autofill/form_input_egtest.mm
@@ -85,7 +85,7 @@ void AssertElementIsFocused(const std::string& element_id) {
   [ChromeEarlGrey loadURL:URL];
 
   id<GREYMatcher> webViewMatcher =
-      chrome_test_util::webViewContainingText("hello!");
+      chrome_test_util::WebViewContainingText("hello!");
   [[EarlGrey selectElementWithMatcher:webViewMatcher]
       assertWithMatcher:grey_notNil()];
 
@@ -96,20 +96,20 @@ void AssertElementIsFocused(const std::string& element_id) {
 
   // Brings up the keyboard by tapping on one of the form's field.
   [[EarlGrey
-      selectElementWithMatcher:web::webViewInWebState(
+      selectElementWithMatcher:web::WebViewInWebState(
                                    chrome_test_util::GetCurrentWebState())]
       performAction:web::webViewTapElement(
                         chrome_test_util::GetCurrentWebState(),
                         kFormElementId1)];
 
   id<GREYMatcher> nextButtonMatcher =
-      chrome_test_util::buttonWithAccessibilityLabelId(
+      chrome_test_util::ButtonWithAccessibilityLabelId(
           IDS_IOS_AUTOFILL_ACCNAME_NEXT_FIELD);
   id<GREYMatcher> previousButtonMatcher =
-      chrome_test_util::buttonWithAccessibilityLabelId(
+      chrome_test_util::ButtonWithAccessibilityLabelId(
           IDS_IOS_AUTOFILL_ACCNAME_PREVIOUS_FIELD);
   id<GREYMatcher> closeButtonMatcher =
-      chrome_test_util::buttonWithAccessibilityLabelId(
+      chrome_test_util::ButtonWithAccessibilityLabelId(
           IDS_IOS_AUTOFILL_ACCNAME_HIDE_KEYBOARD);
 
   // Wait until the keyboard's "Next" button appeared.